Valence states and spin structure of spinel FeV 2O 4 with different orbital degrees of freedom

J. S. Kang; Jihoon Hwang; D. H. Kim; Eunsook Lee; W. C. Kim; C. S. Kim; Sangil Kwon; Soonchil Lee; J. Y. Kim; T. Ueno; M. Sawada; Bongjae Kim; Beom Hyun Kim; B. I. Min

doi:10.1103/PhysRevB.85.165136

Valence states and spin structure of spinel FeV ₂O ₄ with different orbital degrees of freedom

J. S. Kang, Jihoon Hwang, D. H. Kim, Eunsook Lee, W. C. Kim, C. S. Kim, Sangil Kwon, Soonchil Lee, J. Y. Kim, T. Ueno, M. Sawada, Bongjae Kim, Beom Hyun Kim, B. I. Min

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Abstract

The electronic structure of spinel FeV ₂O ₄, 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.

Original language	English
Article number	165136
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	85
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevB.85.165136
State	Published - 23 Apr 2012

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Kang, J. S., Hwang, J., Kim, D. H., Lee, E., Kim, W. C., Kim, C. S., Kwon, S., Lee, S., Kim, J. Y., Ueno, T., Sawada, M., Kim, B., Kim, B. H., & Min, B. I. (2012). Valence states and spin structure of spinel FeV ₂O ₄ with different orbital degrees of freedom. Physical Review B - Condensed Matter and Materials Physics, 85(16), Article 165136. https://doi.org/10.1103/PhysRevB.85.165136

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title = "Valence states and spin structure of spinel FeV 2O 4 with different orbital degrees of freedom",

abstract = "The electronic structure of spinel FeV 2O 4, 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.",

author = "Kang, {J. S.} and Jihoon Hwang and Kim, {D. H.} and Eunsook Lee and Kim, {W. C.} and Kim, {C. S.} and Sangil Kwon and Soonchil Lee and Kim, {J. Y.} and T. Ueno and M. Sawada and Bongjae Kim and Kim, {Beom Hyun} and Min, {B. I.}",

year = "2012",

month = apr,

day = "23",

doi = "10.1103/PhysRevB.85.165136",

language = "English",

volume = "85",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

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T1 - Valence states and spin structure of spinel FeV 2O 4 with different orbital degrees of freedom

AU - Kang, J. S.

AU - Hwang, Jihoon

AU - Kim, D. H.

AU - Lee, Eunsook

AU - Kim, W. C.

AU - Kim, C. S.

AU - Kwon, Sangil

AU - Lee, Soonchil

AU - Kim, J. Y.

AU - Ueno, T.

AU - Sawada, M.

AU - Kim, Bongjae

AU - Kim, Beom Hyun

AU - Min, B. I.

PY - 2012/4/23

Y1 - 2012/4/23

N2 - The electronic structure of spinel FeV 2O 4, 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.

AB - The electronic structure of spinel FeV 2O 4, 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.

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U2 - 10.1103/PhysRevB.85.165136

DO - 10.1103/PhysRevB.85.165136

M3 - Article

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SN - 1098-0121

VL - 85

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 16

M1 - 165136

ER -

Valence states and spin structure of spinel FeV ₂O ₄ with different orbital degrees of freedom

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