Theory of magnetic circular dichroism in Ce L2,3-edges of mixed valence compound CeFe2

H. Ogasawara; K. Asakura; K. Fukui; I. Harada; A. Kotani

doi:10.1016/S0022-3697(02)00147-6

Theory of magnetic circular dichroism in Ce L_2,3-edges of mixed valence compound CeFe₂

H. Ogasawara, K. Asakura, K. Fukui, I. Harada, A. Kotani

Educational Center for Researchers of the Next Generation

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9 Citations (Scopus)

Abstract

Theoretical analysis of the magnetic circular dichroism at Ce L_2,3 edges in X-ray absorption spectra (XAS) of mixed valence compound CeFe₂ is presented. Impurity Anderson model is used to describe the valence mixing between Ce 4f orbital and Fe 3d band with LCAO approach to describe the band nature of the Fe 3d and Ce 5d states. Our results reproduce well the two-peak structure observed both in XAS and MCD experiments, especially their energy positions and spectral widths. Anomalously small magnetic moment is consistent with our model.

Original language	English
Pages (from-to)	1485-1488
Number of pages	4
Journal	Journal of Physics and Chemistry of Solids
Volume	63
Issue number	6-8
DOIs	https://doi.org/10.1016/S0022-3697(02)00147-6
Publication status	Published - Jan 1 2002

Keywords

A. Intermetallic compounds
A. Magnetic materials
C. XAFS (EXAFS and XANES)
D. Electronic structure
D. Magnetic properties

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

Access to Document

10.1016/S0022-3697(02)00147-6

Cite this

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title = "Theory of magnetic circular dichroism in Ce L2,3-edges of mixed valence compound CeFe2",

abstract = "Theoretical analysis of the magnetic circular dichroism at Ce L2,3 edges in X-ray absorption spectra (XAS) of mixed valence compound CeFe2 is presented. Impurity Anderson model is used to describe the valence mixing between Ce 4f orbital and Fe 3d band with LCAO approach to describe the band nature of the Fe 3d and Ce 5d states. Our results reproduce well the two-peak structure observed both in XAS and MCD experiments, especially their energy positions and spectral widths. Anomalously small magnetic moment is consistent with our model.",

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T1 - Theory of magnetic circular dichroism in Ce L2,3-edges of mixed valence compound CeFe2

AU - Ogasawara, H.

AU - Asakura, K.

AU - Fukui, K.

AU - Harada, I.

AU - Kotani, A.

PY - 2002/1/1

Y1 - 2002/1/1

N2 - Theoretical analysis of the magnetic circular dichroism at Ce L2,3 edges in X-ray absorption spectra (XAS) of mixed valence compound CeFe2 is presented. Impurity Anderson model is used to describe the valence mixing between Ce 4f orbital and Fe 3d band with LCAO approach to describe the band nature of the Fe 3d and Ce 5d states. Our results reproduce well the two-peak structure observed both in XAS and MCD experiments, especially their energy positions and spectral widths. Anomalously small magnetic moment is consistent with our model.

AB - Theoretical analysis of the magnetic circular dichroism at Ce L2,3 edges in X-ray absorption spectra (XAS) of mixed valence compound CeFe2 is presented. Impurity Anderson model is used to describe the valence mixing between Ce 4f orbital and Fe 3d band with LCAO approach to describe the band nature of the Fe 3d and Ce 5d states. Our results reproduce well the two-peak structure observed both in XAS and MCD experiments, especially their energy positions and spectral widths. Anomalously small magnetic moment is consistent with our model.

KW - A. Intermetallic compounds

KW - A. Magnetic materials

KW - C. XAFS (EXAFS and XANES)

KW - D. Electronic structure

KW - D. Magnetic properties

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