Valence states and spin structure of spinel FeV2O4 with different orbital degrees of freedom

Physical Review B 85 巻 16 号 165136- 頁 2012 発行
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タイトル ( eng )
Valence states and spin structure of spinel FeV2O4 with different orbital degrees of freedom
作成者
Kang J.-S.
Hwang Jihoon
Kim D. H.
Lee Eunsook
Kim W. C.
Kim C. S.
Kwon Sangil
Lee Soonchil
Kim J.-Y.
Ueno Tetsuro
Kim Bongjae
Hyun Kim Beom
Min B. I.
収録物名
Physical Review B
85
16
開始ページ 165136
抄録
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 t2g 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.
NDC分類
物理学 [ 420 ]
言語
英語
資源タイプ 学術雑誌論文
出版者
American Physical Society
発行日 2012
権利情報
(c) 2012 American Physical Society
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 1098-0121
[DOI] 10.1103/PhysRevB.85.165136
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.85.165136