XMCD study on electronic and magnetic states of rare-earth 5d electrons in Laves compounds, RFe2 (R = rare-earth)

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

doi:10.1238/Physica.Topical.115a00113

XMCD study on electronic and magnetic states of rare-earth 5d electrons in Laves compounds, RFe₂ (R = rare-earth)

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

Educational Center for Researchers of the Next Generation

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

X-ray magnetic circular dichroism (XMCD) at the rare-earth (RE) L _2,3 absorption edges of RFe₂ (R = RE) in the Laves phase has been investigated based on the tight-binding model with the intra-atomic exchange interaction between 5d and 4f electrons. We find that the magnetic polarization of 5d electrons, being essential for these XMCD, is dominated by the intra-atomic exchange interaction and by the hybridization with spin-polarized Fe 3d states. These contributions as well as the quadrupole one compete, resulting in a variety of XMCD spectra, as observed in experiments.

Original language	English
Pages (from-to)	113-114
Number of pages	2
Journal	Physica Scripta T
Volume	T115
DOIs	https://doi.org/10.1238/Physica.Topical.115a00113
Publication status	Published - 2005
Event	12th X-ray Absorption Fine Structure International Conference, XAFS12 - Malmo, Sweden Duration: Jun 23 2003 → Jun 27 2003

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Mathematical Physics
Condensed Matter Physics

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title = "XMCD study on electronic and magnetic states of rare-earth 5d electrons in Laves compounds, RFe2 (R = rare-earth)",

abstract = "X-ray magnetic circular dichroism (XMCD) at the rare-earth (RE) L 2,3 absorption edges of RFe2 (R = RE) in the Laves phase has been investigated based on the tight-binding model with the intra-atomic exchange interaction between 5d and 4f electrons. We find that the magnetic polarization of 5d electrons, being essential for these XMCD, is dominated by the intra-atomic exchange interaction and by the hybridization with spin-polarized Fe 3d states. These contributions as well as the quadrupole one compete, resulting in a variety of XMCD spectra, as observed in experiments.",

author = "A. Fujiwara and K. Asakura and I. Harada and H. Ogasawara and A. Kotani",

year = "2005",

doi = "10.1238/Physica.Topical.115a00113",

language = "English",

volume = "T115",

pages = "113--114",

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T1 - XMCD study on electronic and magnetic states of rare-earth 5d electrons in Laves compounds, RFe2 (R = rare-earth)

AU - Fujiwara, A.

AU - Asakura, K.

AU - Harada, I.

AU - Ogasawara, H.

AU - Kotani, A.

PY - 2005

Y1 - 2005

N2 - X-ray magnetic circular dichroism (XMCD) at the rare-earth (RE) L 2,3 absorption edges of RFe2 (R = RE) in the Laves phase has been investigated based on the tight-binding model with the intra-atomic exchange interaction between 5d and 4f electrons. We find that the magnetic polarization of 5d electrons, being essential for these XMCD, is dominated by the intra-atomic exchange interaction and by the hybridization with spin-polarized Fe 3d states. These contributions as well as the quadrupole one compete, resulting in a variety of XMCD spectra, as observed in experiments.

AB - X-ray magnetic circular dichroism (XMCD) at the rare-earth (RE) L 2,3 absorption edges of RFe2 (R = RE) in the Laves phase has been investigated based on the tight-binding model with the intra-atomic exchange interaction between 5d and 4f electrons. We find that the magnetic polarization of 5d electrons, being essential for these XMCD, is dominated by the intra-atomic exchange interaction and by the hybridization with spin-polarized Fe 3d states. These contributions as well as the quadrupole one compete, resulting in a variety of XMCD spectra, as observed in experiments.

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