Valence states and spin structure of spinel FeV2O4 with different orbital degrees of freedom
SCIE
SCOPUS
- Title
- Valence states and spin structure of spinel FeV2O4 with different orbital degrees of freedom
- Authors
- Kang, JS; Hwang, J; Kim, DH; Lee, E; Kim, WC; Kim, CS; Kwon, S; Lee, S; Kim, JY; Ueno, T; Sawada, M; Kim, B; Kim, BH; Min, BI
- Date Issued
- 2012-04-23
- Publisher
- APS
- Abstract
- The electronic structure of spinel FeV2O4, which contains two Jahn-Teller active Fe and V ions, has been investigated by employing soft x-ray absorption spectroscopy (XAS), soft x-ray magnetic circular dichroism (XMCD), and nuclear magnetic resonance (NMR). XAS indicates that V ions are trivalent and Fe ions are nearly divalent. The signs of V and Fe 2p XMCD spectra are opposite to each other. It is found that the effect of the V 3d spin-orbit interaction on the V 2p XMCD spectrum is negligible, indicating that the orbital ordering of V t(2g) states occurs from the real orbital states and that the orbital moment of a V3+ ion is mostly quenched. NMR shows that V spins are canted to have a Yafet-Kittel-type triangular spin configuration.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/12276
- DOI
- 10.1103/PHYSREVB.85.165136
- ISSN
- 1098-0121
- Article Type
- Article
- Citation
- PHYSICAL REVIEW B, vol. 85, no. 16, page. 165136, 2012-04-23
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