X-ray magnetic circular dichroism study of an orbital ordered state in the spinel-type vanadium oxide A V2 O4 (A= Mn, Fe)

K. Matsuura; H. Sagayama; Y. Nii; N. D. Khanh; N. Abe; T. Arima

doi:10.1103/PhysRevB.92.035133

X-ray magnetic circular dichroism study of an orbital ordered state in the spinel-type vanadium oxide A V2 O4 (A= Mn, Fe)

K. Matsuura, H. Sagayama, Y. Nii, N. D. Khanh, N. Abe, T. Arima

IMR - Materials Design Division

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

Spinel-type vanadium oxides FeV2O4 and MnV2O4 are considered to exhibit different types of V3+ orbital order from each other. In order to tackle this issue, the temperature dependence of x-ray absorption spectrum (XAS) and x-ray magnetic circular dichroism (XMCD) spectrum are investigated in both spinel compounds. The application of the sum rule to the obtained V edge XMCD spectra and the comparison with crystal-field multiplet calculations suggest a real orbital ordered state with quenched orbital angular momenta in both FeV2O4 and MnV2O4. A dissimilarity in XAS spectra between these compounds would originate from a quantitative difference of trigonal distortion.

Original language	English
Article number	035133
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	92
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevB.92.035133
Publication status	Published - 2015 Jul 20

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10.1103/PhysRevB.92.035133

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abstract = "Spinel-type vanadium oxides FeV2O4 and MnV2O4 are considered to exhibit different types of V3+ orbital order from each other. In order to tackle this issue, the temperature dependence of x-ray absorption spectrum (XAS) and x-ray magnetic circular dichroism (XMCD) spectrum are investigated in both spinel compounds. The application of the sum rule to the obtained V edge XMCD spectra and the comparison with crystal-field multiplet calculations suggest a real orbital ordered state with quenched orbital angular momenta in both FeV2O4 and MnV2O4. A dissimilarity in XAS spectra between these compounds would originate from a quantitative difference of trigonal distortion.",

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AU - Matsuura, K.

AU - Sagayama, H.

AU - Nii, Y.

AU - Khanh, N. D.

AU - Abe, N.

AU - Arima, T.

PY - 2015/7/20

Y1 - 2015/7/20

N2 - Spinel-type vanadium oxides FeV2O4 and MnV2O4 are considered to exhibit different types of V3+ orbital order from each other. In order to tackle this issue, the temperature dependence of x-ray absorption spectrum (XAS) and x-ray magnetic circular dichroism (XMCD) spectrum are investigated in both spinel compounds. The application of the sum rule to the obtained V edge XMCD spectra and the comparison with crystal-field multiplet calculations suggest a real orbital ordered state with quenched orbital angular momenta in both FeV2O4 and MnV2O4. A dissimilarity in XAS spectra between these compounds would originate from a quantitative difference of trigonal distortion.

AB - Spinel-type vanadium oxides FeV2O4 and MnV2O4 are considered to exhibit different types of V3+ orbital order from each other. In order to tackle this issue, the temperature dependence of x-ray absorption spectrum (XAS) and x-ray magnetic circular dichroism (XMCD) spectrum are investigated in both spinel compounds. The application of the sum rule to the obtained V edge XMCD spectra and the comparison with crystal-field multiplet calculations suggest a real orbital ordered state with quenched orbital angular momenta in both FeV2O4 and MnV2O4. A dissimilarity in XAS spectra between these compounds would originate from a quantitative difference of trigonal distortion.

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X-ray magnetic circular dichroism study of an orbital ordered state in the spinel-type vanadium oxide A V2 O4 (A= Mn, Fe)

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