| SUZUKI, Hakuto, Huimei LIU, Joel BERTINSHAW, Kentaro UEDA, H. KIM, Sourav LAHA, Daniel WEBER, Zichen YANG, Lichen WANG, Hiroto TAKAHASHI, Katrin FÜRSICH, Matteo MINOLA, Bettina V. LOTSCH, B. J. KIM, Hasan YAVAŞ, Maria DAGHOFER, Jiří CHALOUPKA, Giniyat KHALIULLIN, Hlynur GRETARSSON a Bernhard KEIMER. Proximate ferromagnetic state in the Kitaev model material α-RuCl3. Nature Communications. London: Nature Publishing Group, 2021, roč. 12, č. 1, s. 4512-4520. ISSN 2041-1723. Dostupné z: https://dx.doi.org/10.1038/s41467-021-24722-4. |
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@article{1793955,
author = {Suzuki, Hakuto and Liu, Huimei and Bertinshaw, Joel and Ueda, Kentaro and Kim, H. and Laha, Sourav and Weber, Daniel and Yang, Zichen and Wang, Lichen and Takahashi, Hiroto and Fürsich, Katrin and Minola, Matteo and Lotsch, Bettina V. and Kim, B. J. and Yavaş, Hasan and Daghofer, Maria and Chaloupka, Jiří and Khaliullin, Giniyat and Gretarsson, Hlynur and Keimer, Bernhard},
article_location = {London},
article_number = {1},
doi = {http://dx.doi.org/10.1038/s41467-021-24722-4},
keywords = {spin systems; scattering; Kitaev model},
language = {eng},
issn = {2041-1723},
journal = {Nature Communications},
title = {Proximate ferromagnetic state in the Kitaev model material α-RuCl3},
url = {https://doi.org/10.1038/s41467-021-24722-4},
volume = {12},
year = {2021}
}
TY - JOUR
ID - 1793955
AU - Suzuki, Hakuto - Liu, Huimei - Bertinshaw, Joel - Ueda, Kentaro - Kim, H. - Laha, Sourav - Weber, Daniel - Yang, Zichen - Wang, Lichen - Takahashi, Hiroto - Fürsich, Katrin - Minola, Matteo - Lotsch, Bettina V. - Kim, B. J. - Yavaş, Hasan - Daghofer, Maria - Chaloupka, Jiří - Khaliullin, Giniyat - Gretarsson, Hlynur - Keimer, Bernhard
PY - 2021
TI - Proximate ferromagnetic state in the Kitaev model material α-RuCl3
JF - Nature Communications
VL - 12
IS - 1
SP - 4512
EP - 4512
PB - Nature Publishing Group
SN - 20411723
KW - spin systems
KW - scattering
KW - Kitaev model
UR - https://doi.org/10.1038/s41467-021-24722-4
N2 - α-RuCl3 is a major candidate for the realization of the Kitaev quantum spin liquid, but its zigzag antiferromagnetic order at low temperatures indicates deviations from the Kitaev model. We have quantified the spin Hamiltonian of α-RuCl3 by a resonant inelastic x-ray scattering study at the Ru L3 absorption edge. In the paramagnetic state, the quasi-elastic intensity of magnetic excitations has a broad maximum around the zone center without any local maxima at the zigzag magnetic Bragg wavevectors. This finding implies that the zigzag order is fragile and readily destabilized by competing ferromagnetic correlations. The classical ground state of the experimentally determined Hamiltonian is actually ferromagnetic. The zigzag state is stabilized by quantum fluctuations, leaving ferromagnetism – along with the Kitaev spin liquid – as energetically proximate metastable states. The three closely competing states and their collective excitations hold the key to the theoretical understanding of the unusual properties of α-RuCl3 in magnetic fields.
ER -
SUZUKI, Hakuto, Huimei LIU, Joel BERTINSHAW, Kentaro UEDA, H. KIM, Sourav LAHA, Daniel WEBER, Zichen YANG, Lichen WANG, Hiroto TAKAHASHI, Katrin FÜRSICH, Matteo MINOLA, Bettina V. LOTSCH, B. J. KIM, Hasan YAVA$\backslash$C S, Maria DAGHOFER, Jiří CHALOUPKA, Giniyat KHALIULLIN, Hlynur GRETARSSON a Bernhard KEIMER. Proximate ferromagnetic state in the Kitaev model material α-RuCl3. \textit{Nature Communications}. London: Nature Publishing Group, 2021, roč.~12, č.~1, s.~4512-4520. ISSN~2041-1723. Dostupné z: https://dx.doi.org/10.1038/s41467-021-24722-4.
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