Spin waves and spin-state transitions in a ruthenate high-temperature antiferromagnet
Abstract
Ruthenium compounds serve as a platform for fundamental concepts such as spin-triplet superconductivity, Kitaev spin liquids and solid-state analogues of the Higgs mode in particle physics. However, basic questions about the electronic structure of ruthenates remain unanswered, because several key parameters (including Hund’s coupling, spin–orbit coupling and exchange interactions) are comparable in magnitude and their interplay is poorly understood, partly due to difficulties in synthesizing large single crystals for spectroscopic experiments. Here we introduce a resonant inelastic X-ray scattering (RIXS) technique capable of probing collective modes in microcrystals of 4d electron materials. We observe spin waves and spin-state transitions in the honeycomb antiferromagnet SrRu2O6 (ref. 10) and use the extracted exchange interactions and measured magnon gap to explain its high Néel temperature. We expect that the RIXS method presented here will enable momentum-resolved spectroscopy of a large class of 4d transition-metal compounds.
- Authors:
-
[1];
[1];
[1];
[6];
[1];
[7];
[1]
- Max-Planck-Inst. fur Festkorperforschung, Stuttgart (Germany)
- Max-Planck-Inst. fur Festkorperforschung, Stuttgart (Germany); Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
- Max-Planck-Inst. fur Festkorperforschung, Stuttgart (Germany); Univ. Stuttgart, Stuttgart (Germany)
- Max-Planck-Inst. fur Festkorperforschung, Stuttgart (Germany); Pohang Univ. of Science and Technology (POSTECH) (Korea, Republic of); Center for Artificial Low Dimensional Electronic Systems, Inst. for Basic Science (IBS), Pohang (South Korea)
- Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
- Max-Planck-Inst. fur Festkorperforschung, Stuttgart (Germany); Univ. Stuttgart, Stuttgart (Germany); Univ. of Tokyo (Japan)
- Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Publication Date:
- Research Org.:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1532472
- Grant/Contract Number:
- AC02-76SF00515
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Materials
- Additional Journal Information:
- Journal Volume: 18; Journal Issue: 6; Journal ID: ISSN 1476-1122
- Publisher:
- Springer Nature - Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Suzuki, H., Gretarsson, H., Ishikawa, H., Ueda, K., Yang, Z., Liu, H., Kim, H., Kukusta, D., Yaresko, A., Minola, M., Sears, J. A., Francoual, S., Wille, H. -C., Nuss, J., Takagi, H., Kim, B. J., Khaliullin, G., Yavaş, H., and Keimer, B. Spin waves and spin-state transitions in a ruthenate high-temperature antiferromagnet. United States: N. p., 2019.
Web. doi:10.1038/s41563-019-0327-2.
Suzuki, H., Gretarsson, H., Ishikawa, H., Ueda, K., Yang, Z., Liu, H., Kim, H., Kukusta, D., Yaresko, A., Minola, M., Sears, J. A., Francoual, S., Wille, H. -C., Nuss, J., Takagi, H., Kim, B. J., Khaliullin, G., Yavaş, H., & Keimer, B. Spin waves and spin-state transitions in a ruthenate high-temperature antiferromagnet. United States. https://doi.org/10.1038/s41563-019-0327-2
Suzuki, H., Gretarsson, H., Ishikawa, H., Ueda, K., Yang, Z., Liu, H., Kim, H., Kukusta, D., Yaresko, A., Minola, M., Sears, J. A., Francoual, S., Wille, H. -C., Nuss, J., Takagi, H., Kim, B. J., Khaliullin, G., Yavaş, H., and Keimer, B. Mon .
"Spin waves and spin-state transitions in a ruthenate high-temperature antiferromagnet". United States. https://doi.org/10.1038/s41563-019-0327-2. https://www.osti.gov/servlets/purl/1532472.
@article{osti_1532472,
title = {Spin waves and spin-state transitions in a ruthenate high-temperature antiferromagnet},
author = {Suzuki, H. and Gretarsson, H. and Ishikawa, H. and Ueda, K. and Yang, Z. and Liu, H. and Kim, H. and Kukusta, D. and Yaresko, A. and Minola, M. and Sears, J. A. and Francoual, S. and Wille, H. -C. and Nuss, J. and Takagi, H. and Kim, B. J. and Khaliullin, G. and Yavaş, H. and Keimer, B.},
abstractNote = {Ruthenium compounds serve as a platform for fundamental concepts such as spin-triplet superconductivity, Kitaev spin liquids and solid-state analogues of the Higgs mode in particle physics. However, basic questions about the electronic structure of ruthenates remain unanswered, because several key parameters (including Hund’s coupling, spin–orbit coupling and exchange interactions) are comparable in magnitude and their interplay is poorly understood, partly due to difficulties in synthesizing large single crystals for spectroscopic experiments. Here we introduce a resonant inelastic X-ray scattering (RIXS) technique capable of probing collective modes in microcrystals of 4d electron materials. We observe spin waves and spin-state transitions in the honeycomb antiferromagnet SrRu2O6 (ref. 10) and use the extracted exchange interactions and measured magnon gap to explain its high Néel temperature. We expect that the RIXS method presented here will enable momentum-resolved spectroscopy of a large class of 4d transition-metal compounds.},
doi = {10.1038/s41563-019-0327-2},
journal = {Nature Materials},
number = 6,
volume = 18,
place = {United States},
year = {Mon Mar 25 00:00:00 EDT 2019},
month = {Mon Mar 25 00:00:00 EDT 2019}
}
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Works referencing / citing this record:
Resonant inelastic x-ray scattering study of $\alpha$ -RuCl 3 : a progress report
journal, January 2020
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Observation of spin-orbit excitations and Hund's multiplets in
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Raman scattering from current-stabilized nonequilibrium phases in
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Proximate ferromagnetic state in the Kitaev model material $\alpha$-RuCl$_3$
text, January 2021
- Suzuki, Hakuto; Liu, H.; Bertinshaw, J.
- Deutsches Elektronen-Synchrotron, DESY, Hamburg
Spin and charge excitations in the correlated multiband metal Ca3Ru2O7
text, January 2020
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- arXiv
Magnetic and electronic ordering phenomena in the [Ru$_2$O$_6$] honeycomb lattice compound AgRuO$_3$
text, January 2021
- Schnelle, Walter; Prasad, Beluvalli E.; Felser, Claudia
- arXiv