Associate Professor Clemens Ulrich

Associate Professor Clemens Ulrich

Associate Professor

 

  • 2015    Sabbatical at the Centre for Free Electron Laser Science at DESY in Hamburg/Germany (Prof. M. Rübhausen).
  • since 2009 Associate Professor in the School of Physics, UNSW
  • 1999 - 2009 Group Leader, Max-Planck Institute for Solid State Research, Stuttgart, Germany (Prof. B. Keimer).
  • 1998 - 1999 Postdoctoral Research Associate, Bell-Labs and NIST, U.S.A. (Prof. A.P. Ramirez, Prof. C. Broholm).
  • 1994 - 1997 Ph.D. Max-Planck Institute for Solid State Research, Stuttgart, Germany (Prof. M. Cardona).
  • 1993 - 1994 Diploma in Physics (M.Sc). University of Ulm, Germany (Prof. Sauer).

 

 

 

 

Science
School of Physics

A/Prof. Clemens Ulrich started his scientific research with Raman Light Scattering in semiconductors under high hydrostatic pressure in 1994 at the Max-Planck institute for solid state research in Stuttgart, where he performed his PhD thesis in the group of M. Cardona. In 1999 C. Ulrich joined the Bell Laboratories/Lucent Technologies and NIST (the National Institute od Standards and Technology) in the USA as postdoctoral research fellow. 

The main topics of his research in the last 10 years were strongly correlated electron systems like unconventional superconductors or transition metal oxides. Of special interest were the effects of spin, charge, and orbital correlations in 3-dimensional perovskite systems with partly occupied 3d-electronic levels. The used experimental techniques were inelastic neutron scattering, Raman lights scattering, and resonant inelastic x-ray scattering (ESRF/Grenoble and PSI/Switzerland). The combination of these complementary techniques allowed to yield a detailed insight in the physics behind strongly correlated electron systems.

Clemens Ulrich was the group leader of the Raman laboratories at the Max-Planck Institute in Stuttgart. He was involved in inelastic neutron scattering experiments (triple-axis-spectrometers and time-of-flight spectrometers) and has performed resonant inelastic x-ray scattering experiments at various synchrotron facilities in Europe.

Clemens Ulrich has more than 60 refereed publications in high-impact journals in magnetism, strongly correlated electron materials and condensed matter physics. His publications were cited more than 1350 times and his Hirsch index is 19.

A/Prof. C. Ulrich joined University of New South Wales in April 2009 in a joint position with ANSTO/The Bragg Institute in Sydney. His main fields of research are strongly correlated electron systems, such as novel superconductors or multiferroic materials. His experimental techniques are neutron scattering at the OPAL research reactor at ANSTO and Raman light scattering at the newly establiched optical laboratories at the UNSW in Sydney.

Phone
02953857494
  • Journal articles | 2024
    Sarmadi N; Pahlevani F; Udayakumar S; Biswal S; Pervez MF; Ulrich C; Chakraborty A; Bhattacharyya SK; Sahajwalla V, 2024, 'Correlative Analysis of Microstructural and Magnetic Characteristics of Dual-Phase High-Carbon Steel', Advanced Engineering Materials, 26, http://dx.doi.org/10.1002/adem.202300826
    Journal articles | 2024
    Yeo Y; Kim J; Suh J; Jang J; Kang K; Schoenherr P; Kim KT; Kim YJ; Kim KH; Ulrich C; Seidel J; Choi SY; Yang CH, 2024, 'Exploring the Possibility of Thermally Assisted Creation and Annihilation of Anti-Frenkel Defects in a Multiferroic Oxide for Tuning Interfacial Ferroelectricity', Advanced Materials Interfaces, 11, http://dx.doi.org/10.1002/admi.202400027
    Journal articles | 2023
    Dutt Gupt G; Kareri Y; Hester J; Ulrich C; Dhaka RS, 2023, 'Unveiling the magnetic structure and phase transition of Cr2CoAl using neutron diffraction', Journal of Applied Physics, 134, http://dx.doi.org/10.1063/5.0158138
    Journal articles | 2022
    Abbas H; Nadeem K; Hester J; Pervez MF; Yick S; Kostylev M; Letofsky-Papst I; Ali B; Ulrich C; Krenn H, 2022, 'Competing magnetic states and M-H loop splitting in core-shell NiO nanoparticles', Nanotechnology, 33, http://dx.doi.org/10.1088/1361-6528/ac6dc3
    Journal articles | 2022
    Graham PJ; Rovillain P; Bartkowiak M; Pomjakushina E; Conder K; Kenzelmann M; Ulrich C, 2022, 'Spin-phonon and magnetoelectric coupling in oxygen-isotope substituted TbMnO3 investigated by Raman scattering', Physical Review B, 105, http://dx.doi.org/10.1103/PhysRevB.105.174438
    Journal articles | 2022
    Narayanan N; Graham PJ; Rovillain P; O'Brien J; Bertinshaw J; Yick S; Hester J; Maljuk A; Souptel D; Büchner B; Argyriou D; Ulrich C, 2022, 'Reduced crystal symmetry as the origin of the ferroelectric polarization within the incommensurate magnetic phase of TbMn2 O5', Physical Review B, 105, http://dx.doi.org/10.1103/PhysRevB.105.214413
    Journal articles | 2022
    Shukla R; Ulrich C; Dhaka RS, 2022, 'Investigation of lattice dynamics, magnetism, and electronic transport in β-Na0.33 V2 O5', Physical Review B, 106, http://dx.doi.org/10.1103/PhysRevB.106.125148
    Journal articles | 2020
    Abbas H; Nadeem K; Krenn H; Kostylev M; Hester J; Murdock AT; Yick S; Letofsky-Papst I; Ulrich C, 2020, 'Magnetic homogeneity in Fe-Mn co-doped NiO nanoparticles', Nanotechnology, 31, pp. 475701, http://dx.doi.org/10.1088/1361-6528/abaf23
    Journal articles | 2020
    Buchenau S; Scheitz S; Sethi A; Slimak JE; Glier TE; Das PK; Dankwort T; Akinsinde L; Kienle L; Rusydi A; Ulrich C; Cooper SL; Rübhausen M, 2020, 'Temperature and magnetic field dependent raman study of electron-phonon interactions in thin films of bi2se3 and bi2te3 nanoflakes', Physical Review B, 101, pp. 245431, http://dx.doi.org/10.1103/PhysRevB.101.245431
    Journal articles | 2020
    Han MG; Garlow JA; Kharkov Y; Camacho L; Rov R; Sauceda J; Vats G; Kisslinger K; Kato T; Sushkov O; Zhu Y; Ulrich C; Söhnel T; Seidel J; Sauceda Flores J, 2020, 'Scaling, rotation, and channeling behavior of helical and skyrmion spin textures in thin films of Te-doped Cu2OSeO3', Science Advances, 6, pp. eaax2138, http://dx.doi.org/10.1126/sciadv.aax2138
    Journal articles | 2019
    Burns SR; Sando D; Xu B; Dupé B; Russell L; Deng G; Clements R; Paull OHC; Seidel J; Bellaiche L; Valanoor N; Ulrich C, 2019, 'Expansion of the spin cycloid in multiferroic BiFeO 3 thin films', npj Quantum Materials, 4, pp. 18, http://dx.doi.org/10.1038/s41535-019-0155-2
    Journal articles | 2019
    Deng G; Yu Y; Cao Y; Feng Z; Ren W; Cao S; Studer AJ; Hester JR; Kareri Y; Ulrich C; McIntyre GJ, 2019, 'Large easy-plane anisotropy induced spin reorientation in magnetoelectric materials (Co4-xMnx)Nb2O9', Journal of Physics Condensed Matter, 31, pp. 235801, http://dx.doi.org/10.1088/1361-648X/ab0da7
    Journal articles | 2019
    Liu Y; Zhang L; Shirsath SE; Zheng J; Liu Y; Ulrich C; Li S, 2019, 'Manipulation of charge carrier concentration and phonon scattering via spin-entropy and size effects: Investigation of thermoelectric transport properties in La-doped Ca3Co4O9', Journal of Alloys and Compounds, 801, pp. 60 - 69, http://dx.doi.org/10.1016/j.jallcom.2019.06.113
    Journal articles | 2019
    Nehla P; Kareri Y; Gupt GD; Hester J; Babu PD; Ulrich C; Dhaka RS, 2019, 'Neutron diffraction and magnetic properties of Co2Cr1-xTixAl Heusler alloys', Physical Review B, 100, pp. 144444, http://dx.doi.org/10.1103/PhysRevB.100.144444
    Journal articles | 2019
    Nehla P; Ulrich C; Dhaka RS, 2019, 'Investigation of the structural, electronic, transport and magnetic properties of Co2FeGa Heusler alloy nanoparticles', Journal of Alloys and Compounds, 776, pp. 379 - 386, http://dx.doi.org/10.1016/j.jallcom.2018.10.242
    Journal articles | 2018
    Deng G; Cao Y; Ren W; Cao S; Studer AJ; Gauthier N; Kenzelmann M; Davidson G; Rule KC; Gardner JS; Imperia P; Ulrich C; McIntyre GJ, 2018, 'Spin dynamics and magnetoelectric coupling mechanism of Co4 N b2 O9', Physical Review B, 97, pp. 085154, http://dx.doi.org/10.1103/PhysRevB.97.085154
    Journal articles | 2018
    Deng G; Yu D; Mole R; Pomjakushina E; Conder K; Kenzelmann M; Yano SI; Wang CW; Rule KC; Gardner JS; Luo H; Li S; Ulrich C; Imperia P; Ren W; Cao S; McIntyre GJ, 2018, 'Spin dynamics of edge-sharing spin chains in SrC a13 C u24 O41', Physical Review B, 98, pp. 184411, http://dx.doi.org/10.1103/PhysRevB.98.184411
    Journal articles | 2018
    Hu S; Cazorla C; Xiang F; Ma H; Wang J; Wang J; Wang X; Ulrich C; Chen L; Seidel J, 2018, 'Strain control of giant magnetic anisotropy in metallic perovskite SrCoO3-δ thin films', ACS Applied Materials and Interfaces, 10, pp. 22348 - 22355, http://dx.doi.org/10.1021/acsami.8b03553
    Journal articles | 2017
    Narayanan N; Graham PJ; Reynolds N; Li F; Rovillain P; Hester J; Kimpton J; Yethiraj M; McIntyre GJ; Hutchison WD; Ulrich C, 2017, 'Subpicometer-scale atomic displacements and magnetic properties in the oxygen-isotope substituted multiferroic DyMn O3', Physical Review B - Condensed Matter and Materials Physics, 95, http://dx.doi.org/10.1103/PhysRevB.95.075154
    Journal articles | 2016
    Bertinshaw J; Maran R; Callori SJ; Ramesh V; Cheung J; Danilkin SA; Lee WT; Hu S; Seidel J; Valanoor N; Ulrich C, 2016, 'Direct evidence for the spin cycloid in strained nanoscale bismuth ferrite thin films', Nature Communications, 7, pp. 12664, http://dx.doi.org/10.1038/ncomms12664
    Journal articles | 2016
    Faraji N; Ulrich C; Wolff N; Kienle L; Adelung R; Mishra YK; Seidel J, 2016, 'Visible-Light Driven Nanoscale Photoconductivity of Grain Boundaries in Self-Supported ZnO Nano- and Microstructured Platelets', Advanced Electronic Materials, 2, http://dx.doi.org/10.1002/aelm.201600138
    Journal articles | 2016
    Reehuis M; Ulrich C; Abdala PM; Pattison P; Khaliullin G; Fujioka J; Miyasaka S; Tokura Y; Keimer B, 2016, 'Spin and orbital disordering by hole doping in Pr 1-x C ax VO 3', Physical Review B, 94, http://dx.doi.org/10.1103/PhysRevB.94.104436
    Journal articles | 2015
    Callori SJ; Hu S; Bertinshaw J; Yue ZJ; Danilkin S; Wang XL; Nagarajan V; Klose F; Seidel J; Ulrich C, 2015, 'Strain-induced magnetic phase transition in SrCoO3-δ thin films', Physical Review B - Condensed Matter and Materials Physics, 91, pp. 140405, http://dx.doi.org/10.1103/PhysRevB.91.140405
    Journal articles | 2015
    Hu S; Yue Z; Lim JS; Callori SJ; Bertinshaw J; Ikeda-Ohno A; Ohkochi T; Yang CH; Wang X; Ulrich C; Seidel J, 2015, 'Growth and Properties of Fully Strained SrCoOx (x ≈ 2.8) Thin Films on DyScO3', Advanced Materials Interfaces, 2, http://dx.doi.org/10.1002/admi.201500012
    Journal articles | 2015
    Ulrich C; Khaliullin G; Guennou M; Roth H; Lorenz T; Keimer B, 2015, 'Spin-Orbital Excitation Continuum and Anomalous Electron-Phonon Interaction in the Mott Insulator LaTiO3', Physical Review Letters, 115, http://dx.doi.org/10.1103/PhysRevLett.115.156403
    Journal articles | 2014
    Bertinshaw J; Brück S; Lott D; Fritzsche H; Khaydukov Y; Soltwedel O; Keller T; Goering E; Audehm P; Cortie DL; Hutchison WD; Ramasse QM; Arredondo M; Maran R; Nagarajan V; Klose F; Ulrich C; Brueck S, 2014, 'Element-specific depth profile of magnetism and stoichiometry at the La0.67 Sr0.33 MnO3/ BiFeO3 interface', Physical Review B - Condensed Matter and Materials Physics, 90, pp. 041113, http://dx.doi.org/10.1103/PhysRevB.90.041113
    Journal articles | 2014
    Bertinshaw J; Cortie DL; Cheng ZX; Avdeev M; Studer AJ; Klose F; Ulrich C; Wang XL, 2014, 'Spin-cycloid instability as the origin of weak ferromagnetism in the disordered perovskite Bi0.8La0.2Fe0.5Mn0.5 O3', Physical Review B - Condensed Matter and Materials Physics, 89, http://dx.doi.org/10.1103/PhysRevB.89.144422
    Journal articles | 2014
    Bertinshaw J; Ulrich C; Günther A; Schrettle F; Wohlauer M; Krohns S; Reehuis M; Studer AJ; Avdeev M; Quach DV; Groza JR; Tsurkan V; Loidl A; Deisenhofer J, 2014, 'FeCr2S4 in magnetic fields: Possible evidence for a multiferroic ground state', Scientific Reports, 4, pp. 6079, http://dx.doi.org/10.1038/srep06079
    Journal articles | 2014
    Kim JH; Jain A; Reehuis M; Khaliullin G; Peets DC; Ulrich C; Park JT; Faulhaber E; Hoser A; Walker HC; Adroja DT; Walters AC; Inosov DS; Maljuk A; Keimer B, 2014, 'Competing exchange interactions on the verge of a metal-insulator transition in the two-dimensional spiral magnet Sr3Fe2 O7', Physical Review Letters, 113, http://dx.doi.org/10.1103/PhysRevLett.113.147206
    Journal articles | 2014
    Schrade M; Casolo S; Graham PJ; Ulrich C; Li S; Løvvik OM; Finstad TG; Norby T, 2014, 'Oxygen nonstoichiometry in (Ca2CoO3) 0.62(CoO2): A combined experimental and computational study', Journal of Physical Chemistry C, 118, pp. 18899 - 18907, http://dx.doi.org/10.1021/jp5048437
    Journal articles | 2012
    Driza N; Blanco-Canosa S; Bakr M; Soltani S; Khalid M; Mustafa L; Kawashima K; Christiani G; Habermeier H; Khaliullin G; Ulrich C; Le tacon M; Keimer B, 2012, 'Long-range transfer of electron-phonon coupling in oxide superlattices', Nature Materials, 11, pp. 675 - 681, http://dx.doi.org/10.1038/nmat3378
    Journal articles | 2012
    Reehuis M; Ulrich C; Maljuk A; Niedermayer C; Ouladdiaf B; Hoser A; Hofmann T; Keimer B, 2012, 'Neutron diffraction study of spin and charge ordering in SrFeO 3-d', Physical Review B, 85, pp. 184109-1 - 184109-15, http://dx.doi.org/10.1103/PhysRevB.85.184109
    Journal articles | 2012
    Tsai P-H; Al Assadi MHN; Zhang TS; Ulrich C; Tan T; Donelson R; Li SS, 2012, 'Immobilization of Na ions for substantial power factor enhancement: Site-specific defect engineering in Na0.8CoO2', Journal of Physical Chemistry C, 116, pp. 4324 - 4329, http://dx.doi.org/10.1021/jp209343v
    Journal articles | 2011
    Raichle M; Reznik D; Lamago D; Heid R; Li Y; Bakr M; Ulrich C; Hinkov V; Hradil K; Lin CT; Keimer B, 2011, 'Highly anisotropic anomaly in the dispersion of the copper-oxygen bond-bending phonon in superconducting YBa2Cu3O 7 from inelastic neutron scattering', Physical Review Letters, 107, pp. 177004-1 - 177004-5, http://dx.doi.org/10.1103/PhysRevLett.107.177004
    Journal articles | 2011
    Reehuis M; Ulrich C; Prokes K; Matas S; Fujioka J; Miyasaka M; Tokura Y; Keimer B, 2011, 'Structural and magnetic phase transitions of the orthovanadates RVO3 (R = Dy, Ho, Er) as seen via neutron diffraction', Physical Review B, 83, pp. 064404-1 - 064404-10, http://dx.doi.org/10.1103/PhysRevB.83.064404
    Journal articles | 2009
    Rahlenbeck M; Sun G; Sun G; Lin CT; Keimer B; Ulrich C, 2009, 'Phonon anomalies in pure and underdoped R1−xKxFe2As2 (R=Ba, Sr) investigated by Raman light scattering', Physical Review - Section B - Condensed Matter, 80, pp. 064509-1 - 064509-5, http://dx.doi.org/10.1103/PhysRevB.80.064509
    Journal articles | 2007
    Capogna L; Fauqué B; Sidis Y; Ulrich C; Bourges P; Pailhès S; Ivanov A; Tallon JL; Liang B; Lin CT; Rykov AI; Keimer B, 2007, 'Odd and even magnetic resonant modes in highly overdoped Bi2 Sr2 Ca Cu2 O8+δ', Physical Review B - Condensed Matter and Materials Physics, 75, http://dx.doi.org/10.1103/PhysRevB.75.060502
    Journal articles | 2004
    Bernhard C; Holden T; Boris AV; Kovaleva NN; Pimenov AV; Humlicek J; Ulrich C; Lin CT; Tallon JL, 2004, 'Anomalous oxygen-isotope effect on the in-plane far-infrared conductivity of detwinned YBa2Cu316,18O6.9', Physical Review B - Condensed Matter and Materials Physics, 69, http://dx.doi.org/10.1103/PhysRevB.69.052502
    Journal articles | 2004
    Kovaleva NN; Boris AV; Holden T; Ulrich C; Liang B; Lin CT; Keimer B; Bernhard C; Tallon JL; Munzar D; Stoneham AM, 2004, 'C-axis lattice dynamics in Bi-based cuprate superconductors', Physical Review B - Condensed Matter and Materials Physics, 69, http://dx.doi.org/10.1103/PhysRevB.69.054511
    Journal articles | 2004
    Lebon A; Adler P; Bernhard C; Boris AV; Pimenov AV; Maljuk A; Lin CT; Ulrich C; Keimer B, 2004, 'Magnetism, Charge Order, and Giant Magnetoresistance in SrFeO 3-δ Single Crystals', Physical Review Letters, 92, pp. 372021 - 372024
    Journal articles | 2004
    Lebon A; Adler P; Bernhard C; Boris AV; Pimenov AV; Maljuk A; Lin CT; Ulrich C; Keimer B, 2004, 'Magnetism, Charge Order, and Giant Magnetoresistance in [Formula presented] Single Crystals', Physical Review Letters, 92, pp. 4, http://dx.doi.org/10.1103/PhysRevLett.92.037202
    Journal articles | 2004
    Maljuk A; Strempfer J; Ulrich C; Sofin M; Capogna L; Lin CT; Keimer B, 2004, 'Growth of Sr3Fe2O7-x single crystals by the floating zone method', Journal of Crystal Growth, 273, pp. 207 - 212, http://dx.doi.org/10.1016/j.jcrysgro.2004.07.091
    Journal articles | 2004
    Pailhès S; Sidis Y; Bourges P; Hinkov V; Ivanov A; Ulrich C; Regnault LP; Keimer B, 2004, 'Resonant magnetic excitations at high energy in superconducting YBa 2Cu3O6.85', Physical Review Letters, 93, http://dx.doi.org/10.1103/PhysRevLett.93.167001
    Journal articles | 2004
    Sidis Y; Pailhes S; Keimer B; Bourges P; Ulrich C; Regnault LP, 2004, 'Magnetic Resonant Excitations in High‐Tc Superconductors', ChemInform, 35, http://dx.doi.org/10.1002/chin.200441225
    Journal articles | 2004
    Sidis Y; Pailhès S; Keimer B; Bourges P; Ulrich C; Regnault LP, 2004, 'Magnetic resonant excitations in High-Tc superconductors', Physica Status Solidi (B) Basic Research, 241, pp. 1204 - 1210, http://dx.doi.org/10.1002/pssb.200304498
    Journal articles | 2004
    Soltan S; Ulrich C; Cristiani G; Habermeier HU, 2004, 'Strain effects on the polaron binding energy in PrBa2Cu 3O7-δ thin films', Physica C: Superconductivity and its Applications, 403, pp. 269 - 275, http://dx.doi.org/10.1016/j.physc.2003.12.017
    Journal articles | 2003
    Maljuk A; Strempfer J; Ulrich C; Lebon A; Lin CT, 2003, 'Growth and characterization of high-quality SrFeOx single crystals', Journal of Crystal Growth, 257, pp. 427 - 431, http://dx.doi.org/10.1016/S0022-0248(03)01474-X
    Journal articles | 2003
    Olguín D; Cantarero A; Ulrich C; Syassen K, 2003, 'Effect of pressure on structural properties and energy band gaps of γ-InSe', Physica Status Solidi (B) Basic Research, 235, pp. 456 - 463, http://dx.doi.org/10.1002/pssb.200301602
    Journal articles | 2003
    Pailhès S; Sidis Y; Bourges P; Ulrich C; Hinkov V; Regnault LP; Ivanov A; Liang B; Lin CT; Bernhard C; Keimer B, 2003, 'Two Resonant Magnetic Modes in an Overdoped High Tc Superconductor', Physical Review Letters, 91, pp. 2370021 - 2370024
    Journal articles | 2003
    Pailhès S; Sidis Y; Bourges P; Ulrich C; Hinkov V; Regnault LP; Ivanov A; Liang B; Lin CT; Bernhard C; Keimer B, 2003, 'Two resonant magnetic modes in an overdoped high [formula presented] superconductor', Physical Review Letters, 91, http://dx.doi.org/10.1103/PhysRevLett.91.237002
    Journal articles | 2003
    Ulrich C; Khaliullin G; Sirker J; Reehuis M; Ohl M; Miyasaka S; Tokura Y; Keimer B, 2003, 'Erratum: Publisher's Note: Magnetic Neutron Scattering Study of YVO 3: Evidence for an Orbital Peierls State (Physical Review Letters) 91 (2003) (257202))', Physical Review Letters, 91, pp. 2699031
    Journal articles | 2003
    Ulrich C; Khaliullin G; Sirker J; Reehuis M; Ohl M; Miyasaka S; Tokura Y; Keimer B, 2003, 'Magnetic Neutron Scattering Study of YVO3: Evidence for an Orbital Peierls State', Physical Review Letters, 91, pp. 2572021 - 2572024
    Journal articles | 2003
    Ulrich C; Khaliullin G; Sirker J; Reehuis M; Ohl M; Miyasaka S; Tokura Y; Keimer B, 2003, 'Magnetic neutron scattering study of [formula presented]: Evidence for an orbital peierls state', Physical Review Letters, 91, http://dx.doi.org/10.1103/PhysRevLett.91.257202
    Journal articles | 2003
    Ulrich C; Khaliullin G; Sirker J; Reehuis M; Ohl M; Miyasaka S; Tokura Y; Keimer B, 2003, 'Publisher’s Note: Magnetic Neutron Scattering Study ofYVO3: Evidence for an Orbital Peierls State [Phys. Rev. Lett.91, 257202 (2003)]', Physical Review Letters, 91, http://dx.doi.org/10.1103/physrevlett.91.269903
    Journal articles | 2002
    He H; Bourges P; Sidis Y; Ulrich C; Regnault LP; Pailhès S; Berzigiarova NS; Kolesnikov NN; Keimer B, 2002, 'Magnetic resonant mode in the single-layer high-temperature superconductor Tl2Ba2CuO6+δ', Science, 295, pp. 1045 - 1047, http://dx.doi.org/10.1126/science.1067877
    Journal articles | 2002
    Keimer B; He H; Bourges P; Sidis Y; Ulrich C; Regnault LP; Pailhès S; Berzigiarova NS; Kolesnikov NN, 2002, 'Inelastic neutron scattering study of Tl2Ba2CuO6+δ', Journal of Physics and Chemistry of Solids, 63, pp. 2243 - 2246, http://dx.doi.org/10.1016/S0022-3697(02)00256-1
    Journal articles | 2002
    Ulrich C; Khaliullin G; Okamoto S; Reehuis M; Ivanov A; He H; Taguchi Y; Tokura Y; Keimer B, 2002, 'Magnetic order and dynamics in an orbitally degenerate ferromagnetic insulator', Physical Review Letters, 89, pp. 167202/1 - 167202/4, http://dx.doi.org/10.1103/PhysRevLett.89.167202
    Journal articles | 2002
    Ulrich C; Kondo S; Reehuis M; He H; Bernhard C; Niedermayer C; Bourée F; Bourges P; Ohl M; Rønnow HM; Takagi H; Keimer B, 2002, 'Structural and magnetic instabilities of La2-xSrxCaCu2O6', Physical Review B - Condensed Matter and Materials Physics, 65, pp. 2205071 - 2205074, http://dx.doi.org/10.1103/PhysRevB.65.220507
    Journal articles | 2001
    Debernardi A; Ulrich C; Cardona M; Syassen K, 2001, 'Pressure Dependence of Raman Linewidth in Semiconductors', physica status solidi (b), 223, pp. 213 - 223, http://dx.doi.org/10.1002/1521-3951(200101)223:1<213::aid-pssb213>3.3.co;2-9
    Journal articles | 2001
    Lin CT; Liang B; Ulrich C; Bernhard C, 2001, 'Single crystals of RuSr2GdCu2O8-δ', Physica C: Superconductivity and its Applications, 364-365, pp. 373 - 375, http://dx.doi.org/10.1016/S0921-4534(01)00799-7
    Journal articles | 2001
    Sidis Y; Ulrich C; Bourges P; Bernhard C; Niedermayer C; Regnault LP; Andersen NH; Keimer B, 2001, 'Antiferromagnetic ordering in superconducting YBa2Cu3O6.5', Physical Review Letters, 86, pp. 4100 - 4103, http://dx.doi.org/10.1103/PhysRevLett.86.4100
    Journal articles | 2000
    Lynn J; Keimer B; Ulrich C; Bernhard C; Tallon J, 2000, 'Antiferromagnetic ordering of Ru and Gd in superconducting', Physical Review B - Condensed Matter and Materials Physics, 61, pp. R14964 - R14967, http://dx.doi.org/10.1103/PhysRevB.61.R14964
    Journal articles | 2000
    Lynn JW; Keimer B; Ulrich C; Bernhard C; Tallon JL, 2000, 'Antiferromagnetic ordering of Ru and Gd in superconductingRuSr2GdCu2O8', Physical Review B, 61, pp. R14964 - R14967, http://dx.doi.org/10.1103/physrevb.61.r14964
    Journal articles | 2000
    Ulrich C; Olguin D; Cantarero A; Goñi AR; Syassen K; Chevy A, 2000, 'Effect of pressure on direct optical transitions of γ-InSe', Physica Status Solidi (B) Basic Research, 221, pp. 777 - 787, http://dx.doi.org/10.1002/1521-3951(200010)221:2<777::AID-PSSB777>3.0.CO;2-W
    Journal articles | 1999
    Debernardi A; Ulrich C; Syassen K; Cardona M, 1999, 'Raman linewidths of optical phonons in 3c-sic under pressure: First-principles calculations and experimental results', Physical Review B - Condensed Matter and Materials Physics, 59, pp. 6774 - 6783, http://dx.doi.org/10.1103/PhysRevB.59.6774
    Journal articles | 1999
    Manjón FJ; van de Vijver Y; Segura A; Muñoz V; Liu ZX; Ulrich C, 1999, 'Band-to-Band and Band-to-Acceptor Photoluminescence Studies in InSe under Pressure', physica status solidi (b), 211, pp. 105 - 110, http://dx.doi.org/10.1002/(sici)1521-3951(199901)211:1<105::aid-pssb105>3.3.co;2-a
    Journal articles | 1999
    Ulrich C; Debernardi A; Anastassakis E; Syassen K; Cardona M, 1999, 'Raman linewidths of phonons in Si, Ge, and SiC under pressure', PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 211, pp. 293 - 300, http://dx.doi.org/10.1002/(SICI)1521-3951(199901)211:1<293::AID-PSSB293>3.3.CO;2-F
    Journal articles | 1999
    Ulrich C; Debernardi A; Anastassakis E; Syassen K; Cardona M, 1999, 'Raman linewidths of phonons in Si, Ge, and SiC under pressure', Physica Status Solidi (B) Basic Research, 211, pp. 293 - 300, http://dx.doi.org/10.1002/(SICI)1521-3951(199901)211:1<293::AID-PSSB293>3.0.CO;2-O
    Journal articles | 1999
    Ulrich C; Göbel A; Syassen K; Cardona M; Cros A; Cantarero A, 1999, 'Raman scattering in CuCl under pressure', Physica Status Solidi (B) Basic Research, 211, pp. 287 - 292, http://dx.doi.org/10.1002/(SICI)1521-3951(199901)211:1<287::AID-PSSB287>3.0.CO;2-C
    Journal articles | 1999
    Ulrich C; Göbel A; Syassen K; Cardona M, 1999, 'Avalanche behavior and statistical properties in a microcrack coalescence process', Physical Review Letters, 82, pp. 351 - 354, http://dx.doi.org/10.1103/PhysRevLett.82.351
    Journal articles | 1999
    Ulrich C; Syassen K; Cardona M; Cros A; Cantarero A, 1999, 'Lattice phonon modes of the high-pressure phase CuCl-IV', Physical Review B - Condensed Matter and Materials Physics, 60, pp. 9410 - 9415, http://dx.doi.org/10.1103/PhysRevB.60.9410
    Journal articles | 1997
    Brillante A; Della Valle RG; Ulrich C; Syassen K, 1997, 'Effect of pressure on lattice modes and electronic excitations of 9,10-diiodoanthracene crystals', Journal of Chemical Physics, 107, pp. 4628 - 4634, http://dx.doi.org/10.1063/1.474823
    Journal articles | 1997
    Errandonea D; Segura A; SanchezRoyo JF; Munoz V; Grima P; Chevy A; Ulrich C, 1997, 'Investigation of conduction-band structure, electron-scattering mechanisms, and phase transitions in indium selenide by means of transport measurements under pressure', PHYSICAL REVIEW B, 55, pp. 16217 - 16225, http://dx.doi.org/10.1103/PhysRevB.55.16217
    Journal articles | 1997
    Ulrich C; Anastassakis E; Syassen K; Debernardi A; Cardona M, 1997, 'Lifetime of phonons in semiconductors under pressure', Physical Review Letters, 78, pp. 1283 - 1286, http://dx.doi.org/10.1103/PhysRevLett.78.1283
    Journal articles | 1997
    Ulrich C; Mennicke C; Schumann E; Ulrich C; Ruehle M, 1997, 'The effect of yttrium and sulfur on the oxidation of FeCrAl', Materials Science Forum, 251-252, pp. 389 - 396, http://dx.doi.org/10.4028/www.scientific.net/MSF.251-254.389
    Journal articles | 1996
    Errandonea D; Segura A; Sánchez Royo JF; Muñoz V; Ulrich C; Grima P; Chevy A, 1996, 'Effects of conduction band structure and dimensionality of the electron gas on transport properties of inSe under pressure', Physica Status Solidi (B) Basic Research, 198, pp. 129 - 134, http://dx.doi.org/10.1002/pssb.2221980118
    Journal articles | 1996
    Kurtenbach A; Ulrich C; Jin-Phillipp NY; Noll F; Eberl K; Syassen K; Phillipp F, 1996, 'Structural and optical characterization of InP/GaInP islands grown by solid-source MBE', Journal of Electronic Materials, 25, pp. 395 - 400, http://dx.doi.org/10.1007/BF02666609
    Journal articles | 1996
    Ulrich C; Mroginski MA; Goñi AR; Cantarero A; Schwarz U; Muñoz V; Syassen K, 1996, 'Vibrational properties of InSe under pressure: Experiment and theory', Physica Status Solidi (B) Basic Research, 198, pp. 121 - 127, http://dx.doi.org/10.1002/pssb.2221980117
    Journal articles | 1995
    Kuball M; Esser N; Ruf T; Ulrich C; Cardona M; Eberl K; Garcia-Cristobal A; Cantarero A, 1995, 'Electric-field-induced Raman scattering in GaAs: Franz-Keldysh oscillations', Physical Review B, 51, pp. 7353 - 7356, http://dx.doi.org/10.1103/PhysRevB.51.7353
    Journal articles | 1995
    Ulrich C; Ves S; Goñi AR; Kurtenbach A; Syassen K; Eberl K, 1995, 'Electronic subband structure of InP/InxGa1-xP quantum islands from high-pressure photoluminescence and photoreflectance', Physical Review B, 52, pp. 12212 - 12217, http://dx.doi.org/10.1103/PhysRevB.52.12212
  • Preprints | 2021
    Narayanan N; Graham PJ; Rovillain P; O'Brien J; Bertinshaw J; Yick S; Hester J; Maljuk A; Souptel D; Büchner B; Argyriou D; Ulrich C, 2021, Reduced crystal symmetry as origin of the ferroelectric polarization within the incommensurate magnetic phase of TbMn2O5, , http://dx.doi.org/10.48550/arxiv.2109.05164
    Preprints | 2021
    O'Brien J; Deng G; Yu D; Ma X; Feng Z; Ren W; Cao S; Robinson RA; McIntyre GJ; Ulrich C, 2021, Giant shifts of crystal-field excitations with temperature as consequence of internal magnetic exchange fields, , http://dx.doi.org/10.48550/arxiv.2109.04610
    Preprints | 2019
    Deng G; Yu D; Mole R; Pomjakushina E; Conder K; Kenzelmann M; Yano S-I; Wang C-W; Rule KC; Gardner JS; Luo H; Li S; Ulrich C; Imperia P; Ren W; Cao S; McIntyrea GJ, 2019, Spin dynamics of edge-sharing spin chains in SrCa13Cu24O41, , http://dx.doi.org/10.48550/arxiv.1901.02102
    Preprints | 2019
    Nehla P; Kareri Y; Gupt GD; Hester J; Babu PD; Ulrich C; Dhaka RS, 2019, Neutron diffraction and magnetic properties of Co$_2$Cr$_{1-x}$Ti$_x$Al Heusler alloys, , http://dx.doi.org/10.48550/arxiv.1909.08292
    Conference Papers | 2019
    Seidel J, 2019, 'Scaling and channelling behavior of helical and skyrmion spin textures in thin films of Te-doped Cu2OSeO3', Cambridge University Press, presented at Cambridge University Press, Cambridge University Press, 05 August 2019, http://dx.doi.org/10.1017/S1431927619000886
    Preprints | 2018
    Nehla P; Ulrich C; Dhaka RS, 2018, Investigation of the structural, electronic, transport and magnetic properties of Co$_2$FeGa Heusler alloy nanoparticles, , http://dx.doi.org/10.48550/arxiv.1810.07660
    Preprints | 2017
    Deng G; Cao Y; Ren W; Cao S; Studer AJ; Gauthier N; Kenzelmann M; Davidson G; Rule KC; Gardner JS; Imperia P; Ulrich C; McIntyre GJ, 2017, Spin Dynamics and Magnetoelectric Coupling Mechanism of Co4Nb2O9, , http://dx.doi.org/10.48550/arxiv.1705.04017
    Preprints | 2015
    Callori SJ; Hu S; Bertinshaw J; Yue Z; Danilkin S; Wang XL; Nagarajan V; Klose F; Seidel J; Ulrich C, 2015, Strain-induced magnetic phase transition in SrCoO$_{3-\delta}$ thin films, http://dx.doi.org/10.48550/arxiv.1502.05192
    Preprints | 2015
    Ulrich C; Khaliullin G; Guennou M; Roth H; Lorenz T; Keimer B, 2015, Spin-orbital excitation continuum and anomalous electron-phonon interaction in the Mott insulator LaTiO$_3$, , http://dx.doi.org/10.48550/arxiv.1509.05280
    Preprints | 2014
    Bertinshaw J; Brück S; Lott D; Fritzsche H; Khaydukov Y; Soltwedel O; Keller T; Goering E; Audehm P; Cortie DL; Hutchison WD; Ramasse QM; Arredondo M; Maran R; Nagarajan V; Klose F; Ulrich C, 2014, Element-Specific Depth Profile of Magnetism and Stoichiometry at the La0.67Sr0.33MnO3/BiFeO3 Interface, http://dx.doi.org/10.48550/arxiv.1407.0737
    Preprints | 2014
    Kim J-H; Jain A; Reehuis M; Khaliullin G; Peets DC; Ulrich C; Park JT; Faulhaber E; Hoser A; Walker HC; Adroja DT; Walters AC; Inosov DS; Maljuk A; Keimer B, 2014, Competing exchange interactions on the verge of a metal-insulator transition in the two-dimensional spiral magnet Sr$_3$Fe$_2$O$_7$, , http://dx.doi.org/10.48550/arxiv.1409.5205
    Preprints | 2013
    Bertinshaw J; Ulrich C; Günther A; Schrettle F; Wohlauer M; Krohns S; Reehuis M; Studer A; Avdeev M; Quach DV; Groza JR; Tsurkan V; Loidl A; Deisenhofer J, 2013, FeCr$_2$S$_4$ in magnetic fields: possible evidence for a multiferroic ground state, , http://dx.doi.org/10.48550/arxiv.1309.2140
    Preprints | 2013
    Peets DC; Kim J-H; Dosanjh P; Reehuis M; Maljuk A; Aliouane N; Ulrich C; Keimer B, 2013, Magnetic phase diagram of $Sr_3 Fe_2 O_{7-x}$, , http://dx.doi.org/10.48550/arxiv.1302.1815
    Preprints | 2012
    Driza N; Blanco-Canosa S; Bakr M; Soltan S; Khalid M; Mustafa L; Kawashima K; Christiani G; Habermeier H-U; Khaliullin G; Ulrich C; Tacon ML; Keimer B, 2012, Long-range transfer of electron-phonon coupling in oxide superlattices, , http://dx.doi.org/10.48550/arxiv.1206.2330
    Preprints | 2012
    Reehuis M; Ulrich C; Maljuk A; Niedermayer C; Ouladdiaf B; Hoser A; Hofmann T; Keimer B, 2012, Neutron diffraction study of spin and charge ordering in SrFeO(3-delta), , http://dx.doi.org/10.48550/arxiv.1207.0921
    Conference Papers | 2012
    Reynolds ; Rovillain ; Graham ; Mulders ; McIntyre ; Danilkin ; Schmalzl ; Reehuis M; Miyasaka S; Fujioka J; Tokura Y; Keimer B; Ulrich C, 2012, 'Inelastic Neutron Scattering in Multiferroic Materials', in Proceedings of the 36th Annual Condensed Matter and Materials Meeting, Australian Institute of Physics, Australia, pp. 1 - 4, presented at 36th Annual ANZIP Condensed Matter and Materials Meeting, Wagga Wagga NSW, 31 January 2012 - 03 February 2012, http://www.aip.org.au/info/sites/default/files/cmm/2012/cmm121.pdf
    Conference Papers | 2012
    Ulrich C; Reynolds NM; Rovillain P; Graham P; Mulders AM; McIntyre GJ; Danilmin S; Schmalzl K; Reehuis M; Miyasaka S; Fujioka J; Tokura Y; Keimer B; Ulrich C, 2012, 'Inelastic Neutron Scattering in Multiferroic Materials', in 36th Annual Condensed Matter and Materials Meeting, 36th Annual Condensed Matter and Materials Meeting, Wagga Wagga, presented at 36th Annual Condensed Matter and Materials Meeting, Wagga Wagga, 31 January 2012 - 03 February 2012
    Conference Papers | 2011
    Danilkin S; Yethiraj M; Saebeck T; Klose F; Ulrich C; Fujioka J; Miyasaka S; Tokura Y; Keimer B, 2011, 'TAIPAN: First Results from the Thermal Triple-axis Spectrometer at OPAL Research Reactor', in Journal of Physics: Conference Series 264, Institute of Physics, UK, pp. 012003-1 - 012003-12, presented at 5th European Conference on Neutron Scattering, ECNS 2011, Prague, Czech Republic, 17 July 2011 - 21 July 2011, http://dx.doi.org/10.1088/1742-6596/340/1/012003
    Preprints | 2011
    Raichle M; Reznik D; Lamago D; Heid R; Li Y; Bakr M; Ulrich C; Hinkov V; Hradil K; Lin CT; Keimer B, 2011, Highly anisotropic anomaly in the dispersion of the copper-oxygen bond-bending phonon in superconducting YBa2Cu3O7 from inelastic neutron scattering, , http://dx.doi.org/10.48550/arxiv.1109.5511
    Conference Papers | 2011
    Ulrich C; Danilkin SA; Yethiraj M; Saerbeck T; Klose F; Ulrich C; Fujioka J; Miyasaka S; Tokura Y; Keimer B, 2011, 'TAIPAN: First Results from the Thermal Triple-axis Spectrometer at OPAL Research Reactor', in TAIPAN: First Results from the Thermal Triple-axis Spectrometer at OPAL Research Reactor, 5th European Conference on Neutron Scattering, Prague, Czech Republic, presented at 5th European Conference on Neutron Scattering, Prague, Czech Republic, 17 July 2011 - 22 July 2011, http://dx.doi.org/10.1088/1742-6596/340/1/012003
    Preprints | 2010
    Rahlenbeck M; Wagenknecht M; Tsukada A; Koelle D; Kleiner R; Keimer B; Ulrich C, 2010, Raman light scattering study and microstructural analysis of epitaxial films of the electron-doped superconductor La_{2-x}Ce_{x}CuO_{4}, , http://dx.doi.org/10.48550/arxiv.1005.1235
    Preprints | 2009
    Bakr M; Schnyder AP; Klam L; Manske D; Lin CT; Keimer B; Cardona M; Ulrich C, 2009, Electronic and phononic Raman scattering in detwinned YBa$_2$Cu$_3$O$_{6.95}$ and Y$_{0.85}$Ca$_{0.15}$Ba$_2$Cu$_3$O$_{6.95}$: s-wave admixture to the $d_{x^2-y^2}$-wave order parameter, , http://dx.doi.org/10.48550/arxiv.0907.4587
    Preprints | 2009
    Rahlenbeck M; Sun GL; Sun DL; Lin CT; Keimer B; Ulrich C, 2009, Phonon anomalies in pure and underdoped R{1-x}K{x}Fe{2}As{2} (R = Ba, Sr) investigated by Raman light scattering, , http://dx.doi.org/10.48550/arxiv.0907.0560
    Conference Papers | 2009
    Reehuis M; Ulrich C; Fujioka J; Miyasaka S; Tokura Y; Keimer B, 2009, 'Neutron Diffraction Study of DyVO3 and HoVO3', in ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, INT UNION CRYSTALLOGRAPHY, pp. S69 - S70, http://dx.doi.org/10.1107/S0108767309098651
    Preprints | 2009
    Ulrich C; Ament LJP; Ghiringhelli G; Braicovich L; Sala MM; Pezzotta N; Schmitt T; Khaliullin G; Brink JVD; Roth H; Lorenz T; Keimer B, 2009, Momentum dependence of orbital excitations in Mott-insulating titanates, , http://dx.doi.org/10.48550/arxiv.0908.2497
    Preprints | 2007
    Fauqué B; Sidis Y; Capogna L; Ivanov A; Hradil K; Ulrich C; Rykov AI; Keimer B; Bourges P, 2007, Dispersion of the odd magnetic resonant mode in near-optimally doped Bi2Sr2CaCu2O8+d, , http://dx.doi.org/10.48550/arxiv.cond-mat/0701052
    Preprints | 2006
    Capogna L; Fauque B; Sidis Y; Ulrich C; Bourges P; Pailhes S; Ivanov A; Tallon JL; Liang B; Lin CT; Rykov AI; Keimer B, 2006, Odd and even magnetic resonant modes in highly overdoped Bi_2 Sr_2 Ca Cu_2 O_{8+delta}, , http://dx.doi.org/10.48550/arxiv.cond-mat/0610869
    Preprints | 2006
    Reehuis M; Ulrich C; Pattison P; Ouladdiaf B; Rheinstadter MC; Ohl M; Regnault LP; Miyasaka M; Tokura Y; Keimer B, 2006, Neutron diffraction study of YVO3, NdVO3, and TbVO3, , http://dx.doi.org/10.48550/arxiv.cond-mat/0604305
    Preprints | 2006
    Reehuis M; Ulrich C; Prokes K; Gozar A; Blumberg G; Komiya S; Ando Y; Pattison P; Keimer B, 2006, Crystal structure and high-field magnetism of La2CuO4, , http://dx.doi.org/10.48550/arxiv.cond-mat/0601616
    Preprints | 2005
    Adler P; Lebon A; Damljanovic V; Ulrich C; Bernhard C; Boris AV; Maljuk A; Lin CT; Keimer B, 2005, Magnetoresistance Effects in SrFeO(3-x): Dependence on Phase Composition and Relation to Magnetic and Charge Order, , http://dx.doi.org/10.48550/arxiv.cond-mat/0512510
    Preprints | 2005
    Pailhès S; Ulrich C; Fauqué B; Hinkov V; Sidis Y; Ivanov A; Lin CT; Keimer B; Bourges P, 2005, Doping Dependence of Bilayer Resonant Spin Excitations in $\bf (Y,Ca)Ba_2Cu_3O_{6+x}$, , http://dx.doi.org/10.48550/arxiv.cond-mat/0512634
    Preprints | 2005
    Ulrich C; Gössling A; Grüninger M; Guennou M; Roth H; Cwik M; Lorenz T; Khaliullin G; Keimer B, 2005, Orbital excitations in titanates, , http://dx.doi.org/10.48550/arxiv.cond-mat/0503106
    Preprints | 2004
    Pailhes S; Sidis Y; Bourges P; Hinkov V; Ivanov A; Ulrich C; Regnault LP; Keimer B, 2004, Resonant magnetic excitations at high energy in superconducting $\bf YBa_2Cu_3O_{6.85}$, , http://dx.doi.org/10.48550/arxiv.cond-mat/0403609
    Preprints | 2004
    Sidis Y; Pailhès S; Keimer B; Bourges P; Ulrich C; Regnault LP, 2004, Magnetic Resonant excitations in High-{$\rm T_c$} superconductors, , http://dx.doi.org/10.48550/arxiv.cond-mat/0401328
    Preprints | 2003
    Bernhard C; Holden T; Boris AV; Kovaleva NN; Pimenov AV; Humlicek J; Ulrich C; Lin CT; Tallon JL, 2003, Anomalous oxygen isotope effect on the in-plane FIR conductivity of detwinned YBa2Cu3$^{16,18}$O$_{6.9}$, , http://dx.doi.org/10.48550/arxiv.cond-mat/0306097
    Preprints | 2003
    Kovaleva NN; Boris AV; Munzar D; Holden T; Ulrich C; Tallon JL; Liang B; Lin CT; Stoneham AM; Keimer B; Bernhard C, 2003, C-axis lattice dynamics in Bi-based cuprate superconductors, , http://dx.doi.org/10.48550/arxiv.cond-mat/0307509
    Preprints | 2003
    Lebon A; Adler P; Bernhard C; Boris AV; Pimenov AV; Maljuk A; Lin CT; Ulrich C; Keimer B, 2003, Magnetism, Charge Order and Giant Magnetoresistance in SrFeO$_{3-\delta}$ Single Crystals, , http://dx.doi.org/10.48550/arxiv.cond-mat/0310695
    Preprints | 2003
    Pailhes S; Sidis Y; Bourges P; Ulrich C; Hinkov V; Regnault LP; Ivanov A; Liang B; Lin CT; Bernhard C; Keimer B, 2003, Two resonant magnetic modes in an overdoped high-$\bf T_c$ superconductor, , http://dx.doi.org/10.48550/arxiv.cond-mat/0308394
    Preprints | 2002
    Bourges P; Keimer B; Pailhès S; Regnault LP; Sidis Y; Ulrich C, 2002, The resonant magnetic mode: a common feature of high-$T_C$ superconductors, , http://dx.doi.org/10.48550/arxiv.cond-mat/0211227
    Preprints | 2002
    He H; Bourges P; Sidis Y; Ulrich C; Regnault LP; Pailhes S; Berzigiarova NS; Kolesnikov NN; Keimer B, 2002, Magnetic Resonant Mode in the Single-Layer High Temperature Superconductor Tl$_2$Ba$_2$Cu$_{6+\delta}$, , http://dx.doi.org/10.48550/arxiv.cond-mat/0201252
    Preprints | 2002
    Ulrich C; Khaliullin G; Okamoto S; Reehuis M; Ivanov A; He H; Taguchi Y; Tokura Y; Keimer B, 2002, Magnetic Order and Dynamics in an Orbitally Degenerate Ferromagnetic Insulator, , http://dx.doi.org/10.48550/arxiv.cond-mat/0209400
    Preprints | 2002
    Ulrich C; Khaliullin G; Sirker J; Reehuis M; Ohl M; Miyasaka S; Tokura Y; Keimer B, 2002, Magnetic neutron scattering study of YVO3: Evidence for an orbital Peierls state, , http://dx.doi.org/10.48550/arxiv.cond-mat/0211589
    Preprints | 2002
    Ulrich C; Kondo S; Reehuis M; He H; Bernhard C; Niedermayer C; Bouree F; Bourges P; Ohl M; Ronnow HM; Takagi H; Keimer B, 2002, Structural and Magnetic Instabilities of La$_{2-x}$Sr$_x$CaCu$_2$O$_6$, , http://dx.doi.org/10.48550/arxiv.cond-mat/0201253
    Conference Papers | 2001
    Debernardi A; Ulrich C; Cardona M; Syassen K, 2001, 'Pressure dependence of Raman Linewidth in semiconductors', in Physica Status Solidi (B) Basic Research, pp. 213 - 223, http://dx.doi.org/10.1002/1521-3951(200101)223:1<213::AID-PSSB213>3.0.CO;2-I
    Preprints | 2001
    Sidis Y; Ulrich C; Bourges P; Bernhard C; Niedermayer C; Regnault LP; Andersen NH; Keimer B, 2001, Antiferromagnetic ordering in superconducting ${\bf YBa_2Cu_3O_{6.5}}$, , http://dx.doi.org/10.48550/arxiv.cond-mat/0101095
    Conference Papers | 1999
    Manjón FJ; Van De Vijver Y; Segura A; Muñoz V; Liu ZX; Ulrich C, 1999, 'Band-to-band and band-to-acceptor photoluminescence studies in InSe under pressure', in Physica Status Solidi (B) Basic Research, WILEY-V C H VERLAG GMBH, THESSALONIKI, GREECE, pp. 105 - 110, presented at 8th International Conference on High Pressure Semiconductor Physics (HPSP-VIII), THESSALONIKI, GREECE, 09 August 1998 - 13 August 1998, http://dx.doi.org/10.1002/(SICI)1521-3951(199901)211:1<105::AID-PSSB105>3.0.CO;2-J
    Conference Papers | 1997
    Siegle H; Goni AR; Thomsen C; Ulrich C; Syassen K; Schottker B; As DJ; Schikora D, 1997, 'High-pressure Raman scattering of biaxially strained GaN on GaAs', in Materials Research Society Symposium - Proceedings, pp. 225 - 230, http://dx.doi.org/10.1557/proc-468-225
    Preprints | 1996
    Errandonea D; Segura A; Sánchez-Royo JF; Muñoz V; Grima P; Chevy A; Ulrich C, 1996, Investigation of conduction band structure, electron scattering mechanisms and phase transitions in indium selenide by means of transport measurements under pressure, , http://dx.doi.org/10.48550/arxiv.cond-mat/9612201

LE180100109 - ARC LIEF,
A/Prof. C. Ulrich, A/Prof. J. Seidel, Prof. N. Valanoor, and Prof. O. Sushkov (UNSW); A/Prof. C. Ling, Prof. B. Kennedy, Prof. C. Kepert, Prof. C. Stampfl, and A/Prof. R. Zheng (University of Sydney); Dr. D. Su and Dr. Liu (UTS, Sydney),
“Magneto-optical Facility for the Search of Novel Multifunctional Materials”,
Funding Period: 2018. Total Funding: $1,841,600.

DP170100415 - ARC Discovery Project,
A/Prof. J. Seidel (UNSW, Sydney) main-CI, A/Prof. C. Ulrich (UNSW, Sydney) main-CI, Prof. M. Rübhausen (Uni. Hamburg) co-CI, and Prof. D. Manske (MPI-FKF, Stuttgart) co-CI,
"Topological spin systems as basis for novel multifunctional applications",
Funding Period: 2017-2019. Funding from the ARC: $355,000.

DP160100545 - ARC Discovery Project,
A/Prof. C. Ulrich (UNSW, Sydney), Prof. F. Klose (ANSTO, Sydney), and Prof. D. Manske (MPI-FKF, Stuttgart),
"Transition Metal Oxide Interfaces: Novel Emerging Functionalities",
Funding Period: 2016-2018. Funding (ARC and ANSTO): $409,500

LE150100084 - ARC LIEF,
A/Prof. J. Seidel, A/Prof. A. Micolich, Prof. N. Valanoor, Prof. A. R. Hamilton, A/Prof. C. Ulrich, Prof. R. McKenzie,
”Next-Generation Electronic and Magnetic Materials Characterisation Facility”,
Funding Period: 2015. Funding from the ARC: $760,000

LE140100033 - ARC LIEF,
A/Prof. C. Ulrich, Dr. P. Reece, Prof. O.P. Sushkov, Dr. G.J. McIntyre, Prof. F. Klose, Dr. G. Deng, Prof. X.L. Wang,
"Ultrafast Optical Spectroscopy for the Investigation of Novel Multifunctional Materials",
Funding Period: 2014-2015. Funding (ARC, UNSW, UoW, and ANSTO): $317,500.

LE120100069 - ARC LIEF,
Prof. X.L. Wang, Prof. S.X. Dou, Dr. G. Peleckis, Prof. L.Ye, Dr. T.S. Zhang, Dr. M. Martyniuk, Prof. C. Zhang, Dr. J. Yi, Dr. W.K. Yeoh, Dr. G. Umana-Membreno, Prof. R.A. Lewis, Dr. Y. Zhang, A/Prof. C. Ulrich,
"A complete high temperature thermal and electrical property characterization facility for development of novel functional materials and devices",
Funding Period: 2012. Funding from the ARC: $325,000.

DP110105346 - ARC Discovery Project,
A/Prof. C. Ulrich and Dr. A.M. Mulders,
"Novel multiferroic materials for the next generation of microelectronics: the effect of isotope substitution on magnetism",
Funding Period: 2011-2013. Funding from the ARC and ANSTO: $420,000.

LE110100060 - ARC LIEF,
A/Prof. C. Ulrich, Prof. X.L. Wang, A/Prof. B. Powell, Dr. S.-C. Lo, Dr. A.M. Mulders,
"High Pressure Facility for Optical Spectroscopy - Investigation of Novel Superconductors and Strongly Correlated Electron Systems",
Funding Period: 2011. Funding from the ARC and the UNSW: $237,500.

2009-2014 Marie Curie FP7 of the European Community,
Project: ”SOPRANO - Spin and Orbital Physics: Research of Advanced New Oxides",
A/Prof. C. Ulrich was the project coordinator at the Max-Planck Institute in Stuttgart, Germany (Group of Prof. B. Keimer). His part of the project was awarded 600,000 Euro for a period of 5 years for PhD students and post doctoral fellows. The entire grant is in total worth 4.65 Million Euro, distributed over five participating institutes and universities.

Otto-Hahn Medaille (1997) of the Max Planck Society, Germany.

From October 1998 to November 1999 I held an Otto-Hahn fellowship of the Max Planck Society, Germany, for postdoctoral research at the Bell-Laboratories, Lucent Technologies, Murray-Hill NJ, and at the National Institute of Standards and Technologies, Centre for Neutron Research in Gaithersburg, Maryland, USA.

From April 1994 to December 1997 I held a graduate student fellowship from the Max Planck Society, Germany.

The main topic of the research of A/Prof. Clemens Ulrich is optical spectroscopy, neutron scattering, and X-ray synchrotron scattering on systems with strongly correlated electrons, in particular transition metal oxides such as multiferroics or unconventional superconductors. Of special interest are effects of spin, charge, and orbital correlations in 3-dimensional perovskites with partly occupied 3d-electronic levels. The combination of the complementary techniques, in particular Raman light scattering and inelastic neutron scattering on the same samples opens new perspectives in the determination of the quantum mechanical processes which result in the fascinating phenomena arising from strong electronic correlations.


Among my current research projects is the investigation of novel multifunctional materials based on transition metal oxides, i.e. multiferroics (TbMnO3, RMn2O5 with R = Tb, Ho, Y, and BiFeO3). In addition to Raman light scattering, neutron diffraction as well as inelastic neutron scattering experiments are performed on single crystal and PLD grown thin film samples. For example, the influence of oxygen isotope substitution on the magnetic properties was investigated in order to shine light on the mechanism of the magnetoelectric coupling. This project was supported through the ARC (grant DP110105346, $420k). Co-funding of ANSTO allowed us to employ two postdoctoral research fellows.


Atomically precise thin film systems of transition metal oxides offer novel functionalities and the possibility to investigate fundamental effects such as the interplay between magnetism and superconductivity on artificially grown materials, which are not accessible in nature. For example, in a combined polarized neutron and X-ray synchrotron reflectometry approach we have investigated the magnetic and stoichiometric depth profile in BiFeO3/LaSrMnO3 heterostructures with Angstr¨om resolution [Phys. Rev. B. Rapid Com. 90, 041113(R) (2014)]. Neutron diffraction experiments on PLD grown SrCoO3 films did verify a theoretically predicted but hitherto unobserved strain induced magnetic phase transition (submitted to Phys. Rev B, Rapid Com.). Experiments on superconducting/ferromagnetic thin film and superlattices by polarized neutron reflection, diffraction, and Raman light scattering will continue our investigations of the interplay between magnetism and superconductivity (see [Nature Materials 11, 675 (2012)]).
In a further project organic superconductors based on -(BEDTTTF) are investigated by Raman light scattering. Of particular interest was the magnetic phase diagram above the superconducting dome. Here we were able to determine the energies of the pseudogaps directly and will, as next step, focus on the symmetry of the superconducting pair-breaking peak. This project is a collaboration with A/Prof. B. Powell from the University of Queensland.

Experimental Techniques Acessible in the Group of A/Prof. C. Ulrich

  • Optical Spectroscopy (Raman Light Scattering, Photoluminescence, Absorption, Reflection)
  • Time-Resolved Optical Spectroscopy
  • Growth of large high quality single crystals
  • Superconducting Quantum Interferrence Magnetometer (SQUID): MPMS3 (Quantum Design)

The purpose of the instruments is to measure the magnetization of samples with extremely weak magnetic signals, e.g.
1. single crystal or powder samples with small magnetic moments such as canted magnetic structures, frustrated spin systems, or molecular magnets, or
2. very small samples. In particular thin film with a film thickness of just a few atomic layers posse magnetic signals which cannot be detected with a standard magnetometer due to the limited sensitivity.

At the UNSW A/Prof. C. Ulrich has installed two state-of-the-art optical setups for Raman light scattering, photoluminescence, absorption, reflection and modulation spectroscopy. The successful ARC grant LE110100060 ($237.500) allowed for the installation of optical diamond anvil high pressure cells for a pressure range of up to 70 GPa and temperatures down to 1.4 K. Furthermore, ultrafast time-resolved optical spectroscopy will be established through our successful ARC research grant LE140100033 ”Ultrafast time-resolved optical spectroscopy for advanced multifunctional materials” ($317.5k).


Besides the optical laboratories A/Prof. C. Ulrich has established a laboratory for sample growth at the UNSW. The laboratory is equipped with two standard muffle furnaces and two tube furnaces for temperatures of up to 1700◦ C. The tube furnaces offer the possibility to apply ultraclean gas environments or vacuum for controlled post growth annealing of the samples. The successful ARC research grant LE140100033 ($317.5k) will allow for the installation of an optical four-mirror traveling solvent floating zone furnace.

 

At the new research reactor OPAL at ANSTO, A/Prof. C. Ulrich has building up the Neutron Laue Diffraction setup JOEY. The main purpose of this instrument is the test of sample quality and alignment of single crystals prior to an experiment on one of the high-flux instruments. The Neutron Laue Camera will be available for all neutron users at the Bragg Institute.

Neutron Laue Diffraction (Instrument JOEY at ANSTO)

•    Research Ambassador for the German DAAD in Sydney (German Academic Exchange Service) and 'Alexander von Humboldt Foundation', Sydney office

               (Help and support PhD students and ECRs for a  research stipend in Germany).

•    Editorial Board Member of ‘Scientific Reports’, Nature Publishing Group, since March 2014.

•    Main organizer of 2 international conferences and co-organizer 2 international conferences.