Observation of spontaneous x-ray magnetic circular dichroism in a chiral antiferromagnet
Journal Article
·
· Physical Review. B
- Univ. of Tokyo (Japan); OSTI
- Univ. of Tokyo (Japan); Japan Science and Technology Agency (JST), Saitama (Japan)
- Univ. of Tokyo (Japan)
- High Energy Accelerator Research Organization (KEK), Tsukuba (Japan). Institute of Materials Structure Science
- Univ. of Tokyo (Japan); Japan Science and Technology Agency (JST), Saitama (Japan); Johns Hopkins Univ., Baltimore, MD (United States)
X-ray magnetic circular dichroism (XMCD) signals are usually absent in antiferromagnets. In this paper, we report the observation of spontaneous XMCD spectra originating from the inverse triangular spin structure, or the polarization of the cluster magnetic octupole, in the chiral antiferromagnet Mn3 Sn thin film. Finally, the result is consistent with the recent theoretical predictions that the inverse triangular spin structure can give rise to finite XMCD signals in the absence of net magnetization [J. Phys. Soc. Jpn 89, 083703 (2020) and Phys. Rev. Lett. 126, 157402 (2021)].
- Research Organization:
- Johns Hopkins Univ., Baltimore, MD (United States); Energy Frontier Research Centers (EFRC) (United States). Institute for Quantum Matter (IQM)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); Japan Society for the Promotion of Science (JSPS) (KAKENHI); Japan Science and Technology Agency (JST) (CREST)
- Grant/Contract Number:
- SC0019331
- OSTI ID:
- 1979661
- Journal Information:
- Physical Review. B, Journal Name: Physical Review. B Journal Issue: 13 Vol. 104; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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