Publications 2021

A touch more unconventional
E. Benckiser
Science 373, 157 (2021)

IRIXS Spectrograph: an ultra high-resolution spectrometer for tender RIXS
J. Bertinshaw, S. Mayer, F.-U. Dill, H. Suzuki, O. Leupold, A. Jafari, I. Sergueev, M. Spiwek, A. Said, E. Kasman, X. Huang, B. Keimer and H. Gretarsson
J. Synchrotron Rad. 28 (2021)

Spin and charge excitations in the correlated multiband metal Ca₃Ru₂O₇
J. Bertinshaw, M. Krautloher, H. Suzuki, H. Takahashi, A. Ivanov, H. Yavaş, B. J. Kim, H. Gretarsson, and B. Keimer
Phys. Rev. B 103, 085108 (2021)

Dynamic electron correlations with charge order wavelength along all directions in the copper oxide plane
F. Boschini, M. Minola, R. Sutarto, E. Schierle, M. Bluschke, S. Das, Y. Yang, M. Michiardi, Y. C. Shao, X. Feng, S. Ono, R. D. Zhong, J. A. Schneeloch, G.D. Gu, E. Weschke, F. He, Y. D. Chuang, B. Keimer, A. Damascelli, A. Frano and E. H. da Silva Neto
Nature Communications 12, 597 (2021)

Effects of reduced dimensionality, crystal field, electron-lattice coupling, and strain on the ground state of a rare-earth nickelate monolayer
Rodrigo Chavez Zavaleta, Stepan Fomichev, Giniyat Khaliullin, and Mona Berciu
Phys. Rev. Materials B, 205111 (2021)

Crystalline and magnetic structure of Ba₂CuO_3+δ investigated by x-ray absorption spectroscopy and resonant inelastic x-ray scattering
Roberto Fumagalli, Abhishek Nag, Stefano Agrestini, Mirian Garcia-Fernandez, Andrew C.Walters, Davide Betto, Nicholas B.Brookes, Lucio Braicovich, Ke-Jin Zhou, Giacomo Ghiringhelli, Marco Moretti Sala
Physica C: Superconductivity and its application, Volume 581 (2021)

Tuning the Thermoelectric Properties of Transition Metal Oxide Thin Films and Superlattices on the Quantum Scale
Benjamin Geisler, Petar Yordanov, Markus Ernst Gruner, Bernhard Keimer, Rossitza Pentcheva
Phys. Status Solidi B, 2100270 (2021)

Unconventional quantum vortex matter state hosts quantum oscillations in the underdoped high-temperature cuprate superconductors
Yu-Te Hsu, Mate Hartstein, Alexander J. Davies, Alexander J. Hickey, Mun K. Chan, Juan Porras, Toshinao Loew, Sofia V. Taylor, Hsu Liu, Alexander G. Eaton, Matthieu Le Tacon, Huakun Zuo, Jinhua Wang, Zengwei Zhu, Gilbert G. Lonzarich, Bernhard Keimer, Neil Harrison and Suchitra E. Sebastian
PNAS, 118 (7), e2021216118 (2021)

Evolution of the metallic state in LaNiO₃/LaAlO₃ superlattices measured by ⁸Liβ-detected NMR
Victoria L. Karner, Aris Chatzichristos, David L. Cortie, Derek Fujimoto, Robert F. Kiefl, C. D. Philip Levy, Ruohong Li, Ryan M. L. McFadden, Gerald D. Morris, Matthew R. Pearson, Eva Benckiser, Alexander V. Boris, Georg Cristiani, Gennady Logvenov, Bernhard Keimer, and W. Andrew MacFarlane
Phys. Rev. B 104, 205114 (2021)

Exchange interactions, Jahn-Teller coupling, and multipole orders in pseudospin one-half 5d² Mott insulators
Giniyat Khaliullin, Derek Churchill, P. Peter Stavropoulos, and Hae-Young Kee
Phys. Rev. Research 3, 033163 (2021)

Neutron Spin-Echo Instrumentation for Magnetic Scattering
Thomas Keller, Heiko Trepka, Klaus Habicht, Bernhard Keimer
Phys. Status Solidi B, 2100164 (2021)

Chirality of Bloch domain walls in exchange-biased CoO/Co bilayer studied by waveguide-enhanced neutron spin-flip scattering
Yu. N. Khaydukov, D. Lenk, V. Zdravkov, R. Morari, T. Keller, A. S. Sidorenko, L. R. Tagirov, R. Tidecks, S. Horn, and B. Keimer
Phys. Rev. B 104, 174445 (2021)

Optical conductivity and superconductivity in highly overdoped La_2−xCa_xCuO₄ thin films
Gideok Kim, Ksenia S. Rabinovich, Alexander V. Boris, Alexander N. Yaresko, Y. Eren Suyolcu, Yu-Mi Wu, Peter A. van Aken, Georg Christiani, Gennady Logvenov, Bernhard Keimer
PNAS, 118 (30) e2106170118 (2021)

Charge Density Waves in YBa₂Cu₃O_6.67 Probed by Resonant X-Ray Scattering under Uniaxial Compression
H.-H. Kim, E. Lefrançois, K. Kummer, R. Fumagalli, N. B. Brookes, D. Betto, S. Nakata, M. Tortora, J. Porras, T. Loew, M. E. Barber, L. Braicovich, A. P. Mackenzie, C. W. Hicks, B. Keimer, M. Minola, and M. Le Tacon
Phys. Rev. Lett. 126, 037002 (2021)

Hidden Charge Order in an Iron Oxide Square-Lattice Compound
Jung-Hwa Kim, Darren C. Peets, Manfred Reehuis, Peter Adler, Andrey Maljuk, Tobias Ritschel, Morgan C. Allison, Jochen Geck, Jose R. L. Mardegan, Pablo J. Bereciartua Perez, Sonia Francoual, Andrew C. Walters, Thomas Keller, Paula M. Abdala, Philip Pattison, Pinder Dosanjh, and Bernhard Keimer
Phys. Rev. Lett. 127, 097203 (2021)

Towards Kitaev spin liquid in 3d transition metal compounds
Huimei Liu
International Journal of Modern Physics B (2021)

Magnetic Scattering
Jeffrey W. Lynn, Bernhard Keimer
Handbook of Magnetism and Magnetic Materials, pp 1-42 (2021)

Superlattice approach to doping infinite-layer nickelates
R. A. Ortiz, H. Menke, F. Misják, D. T. Mantadakis, K. Fürsich, E. Schierle, G. Logvenov, U. Kaiser, B. Keimer, P. Hansmann, and E. Benckiser
Phys. Rev. B 104, 165137 (2021)

Electronic structure of the bond disproportionated bismuthate Ag₂BiO₃
Mohamed Oudah, Minu Kim, Ksenia S. Rabinovich, Kateryna Foyevtsova, Graham McNally, Berkay Kilic, Kathrin Küster, Robert Green, Alexander V. Boris, George Sawatzky, Andreas P. Schnyder, D. A. Bonn, Bernhard Keimer, and Hidenori Takagi
Phys. Rev. Materials 5, 064202 (2021)

All-optical and microwave-free detection of Meissner screening using nitrogen-vacancy centers in diamond
D. Paone, D. Pinto, G. Kim, L. Feng, M.-J. Kim, R. Stöhr, A. Singha, S. Kaiser, G. Logvenov, B. Keimer, J. Wrachtrup, K. Kern
Journal of Applied Physics 129, 024306 (2021)

Topotactic transformation of single crystals: From perovskite to infinite-layer nickelates
Pascal Puphal, Katrin Fürsich, Hangoo Lee, Mohammad Pakdaman, Jan A. N. Bruin, Jürgen Nuss, Eren Suyolcu, Peter A. van Aken, Bernhard Keimer, Masahiko Isobe
Science Advances Vol 7, 49 (2021)

Formation mechanism of Ruddlesden–Popper faults in compressive-strained ABO₃ perovskite superlattices
Haoyuan Qi, Xiaodan Chen, Eva Benckiser, Meng Wu, Georg Cristiani, Gennady Logvenov, Bernhard Keimer and Ute Kaiser
Nanoscale (2021)

Orbital engineering in YVO₃−LaAlO₃ superlattices
P. Radhakrishnan, B. Geisler, K. Fürsich, D. Putzky, Y. Wang, S. E. Ilse, G. Christiani, G. Logvenov, P. Wochner, P. A. van Aken, E. Goering, R. Pentcheva, and E. Benckiser
Phys. Rev. B 104, L121102 (2021)

In-plane Isotropy of the Low Energy Phonon Anomalies in YBa₂Cu₃O_6+x
Sofia-Michaela Souliou, Kaushik Sen, Rolf Heid, Suguru Nakata, Lichen Wang, Hun-ho Kim, Hiroshi Uchiyama, Michael Merz, Matteo Minola, Bernhard Keimer, Matthieu Le Tacon
J. Phys. Soc. Jpn., 90, 111006 (2021)

Probing the current-phase relation in Josephson point-contact junctions between Pb_0.6 In_0.4 and Ba_0.6 K_0.4 (FeAs)₂ superconductors
Valeriy A. Stepanov, Chengtian Lin, Renato S. Gonnelli and Mauro Tortello
Scientific Reports, 11, 23986 (2021)

Ultrafast phononic switching of magnetization
A. Stupakiewicz, C. S. Davies, K. Szerenos, D. Afanasiev, K. S. Rabinovich, A. V. Boris, A. Caviglia , A. V. Kimel and A. Kirilyuk
Nature Physics, 17, 489–492 (2021)

Control of the metal-insulator transition in NdNiO₃ thin films through the interplay between structural and electronic properties
Y. E. Suyolcu, K. Fürsich, M. Hepting, Z. Zhong, Y. Lu, Y. Wang, G. Christiani, G. Logvenov, P. Hansmann, M. Minola, B. Keimer, P. A. van Aken, and E. Benckiser
Phys. Rev. Materials 5, 045001 (2021)

Proximate ferromagnetic state in the Kitaev model material α-RuCl₃
H. Suzuki, H. Liu, J. Bertinshaw, K. Ueda, H. Kim, S. Laha, D. Weber, Z. Yang, L. Wang, H. Takahashi, K. Fürsich, M. Minola, B. V. Lotsch, B. J. Kim, H. Yavaş, M. Daghofer, J. Chaloupka, G. Khaliullin, H. Gretarsson & B. Keimer
Nature Communications 12, 4512 (2021)

Nonmagnetic J=0 State and Spin-Orbit Excitations in K₂RuCl₆
H. Takahashi, H. Suzuki, J. Bertinshaw, S. Bette, C. Mühle, J. Nuss, R. Dinnebier, A. Yaresko, G. Khaliullin, H. Gretarsson, T. Takayama, H. Takagi, and B. Keimer
Phys. Rev. Lett. 127, 227201 (2021)

Spin–Orbit-Entangled Electronic Phases in 4d and 5d Transition-Metal Compounds
Tomohiro Takayama, Jiří Chaloupka, Andrew Smerald, Giniyat Khaliullin and Hidenori Takagi
J. Phys. Soc. Jpn. 90, 062001 (2021)

Atomic-Scale Tuning of the Charge Distribution by Strain Engineering in Oxide Heterostructuress
Yu-Mi Wu, Y. Eren Suyolcu, Gideok Kim, Georg Christiani, Yi Wang, Bernhard Keimer, Gennady Logvenov, and Peter A. van Aken
ACS Nano (2021)

High-temperature electrical and thermal transport properties of polycrystalline PdCoO₂
P. Yordanov, A. S. Gibbs, P. Kaya, S. Bette, W. Xie, X. Xiao, A. Weidenkaff, H. Takagi, and B. Keimer
Phys. Rev. Materials 5, 015404 (2021)