Soft X-ray magnetic circular dichroism study of uranium monochalcogenides at uranium N4,5 absorption edges

Tetsuo Okane; Yukiharu Takeda; Jun Okamoto; Kazutoshi Mamiya; Takuo Ohkochi; Shin Ichi Fujimori; Yuji Saitoh; Hiroshi Yamagami; Atsushi Fujimori; Akira Ochiai; Arata Tanaka

doi:10.1143/JPSJ.77.024706

Soft X-ray magnetic circular dichroism study of uranium monochalcogenides at uranium N_4,5 absorption edges

Tetsuo Okane, Yukiharu Takeda, Jun Okamoto, Kazutoshi Mamiya, Takuo Ohkochi, Shin Ichi Fujimori, Yuji Saitoh, Hiroshi Yamagami, Atsushi Fujimori, Akira Ochiai, Arata Tanaka

SCI - Physics

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

13 Citations (Scopus)

Abstract

X-ray magnetic circular dichroism (XMCD) was measured for the ferromagnetic uranium monochalcogenides US and USe at U N_4,5 absorption edges in the soft X-ray region. The obtained N4;5 XMCD signal of US was comparable to the M_4,5 XMCD signal obtained in previous studies. From the sum-rule analysis of XMCD data, it was shown that the estimated ratios of orbital magnetic moment to spin magnetic moment |μ_L/μ_S| were almost the same for US and USe. The analysis of the XAS branching ratio indicated an increase in 5f electron occupation number from US to USe, which may suppress the increase in |μ_L/μ_S|.

Original language	English
Article number	024706
Journal	journal of the physical society of japan
Volume	77
Issue number	2
DOIs	https://doi.org/10.1143/JPSJ.77.024706
Publication status	Published - 2008 Feb

Keywords

Ferromagnetism
Magnetic circular dichroism
Uranium compounds
X-ray absorption

ASJC Scopus subject areas

Physics and Astronomy(all)

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Soft X-ray magnetic circular dichroism study of uranium monochalcogenides at uranium N_4,5 absorption edges. / Okane, Tetsuo; Takeda, Yukiharu; Okamoto, Jun; Mamiya, Kazutoshi; Ohkochi, Takuo; Fujimori, Shin Ichi; Saitoh, Yuji; Yamagami, Hiroshi; Fujimori, Atsushi; Ochiai, Akira; Tanaka, Arata.

In: journal of the physical society of japan, Vol. 77, No. 2, 024706, 02.2008.

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

Okane, Tetsuo ; Takeda, Yukiharu ; Okamoto, Jun ; Mamiya, Kazutoshi ; Ohkochi, Takuo ; Fujimori, Shin Ichi ; Saitoh, Yuji ; Yamagami, Hiroshi ; Fujimori, Atsushi ; Ochiai, Akira ; Tanaka, Arata. / Soft X-ray magnetic circular dichroism study of uranium monochalcogenides at uranium N_4,5 absorption edges. In: journal of the physical society of japan. 2008 ; Vol. 77, No. 2.

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title = "Soft X-ray magnetic circular dichroism study of uranium monochalcogenides at uranium N4,5 absorption edges",

abstract = "X-ray magnetic circular dichroism (XMCD) was measured for the ferromagnetic uranium monochalcogenides US and USe at U N4,5 absorption edges in the soft X-ray region. The obtained N4;5 XMCD signal of US was comparable to the M4,5 XMCD signal obtained in previous studies. From the sum-rule analysis of XMCD data, it was shown that the estimated ratios of orbital magnetic moment to spin magnetic moment |μL/μS| were almost the same for US and USe. The analysis of the XAS branching ratio indicated an increase in 5f electron occupation number from US to USe, which may suppress the increase in |μL/μS|.",

keywords = "Ferromagnetism, Magnetic circular dichroism, Uranium compounds, X-ray absorption",

author = "Tetsuo Okane and Yukiharu Takeda and Jun Okamoto and Kazutoshi Mamiya and Takuo Ohkochi and Fujimori, {Shin Ichi} and Yuji Saitoh and Hiroshi Yamagami and Atsushi Fujimori and Akira Ochiai and Arata Tanaka",

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AU - Okane, Tetsuo

AU - Takeda, Yukiharu

AU - Okamoto, Jun

AU - Mamiya, Kazutoshi

AU - Ohkochi, Takuo

AU - Fujimori, Shin Ichi

AU - Saitoh, Yuji

AU - Yamagami, Hiroshi

AU - Fujimori, Atsushi

AU - Ochiai, Akira

AU - Tanaka, Arata

PY - 2008/2

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N2 - X-ray magnetic circular dichroism (XMCD) was measured for the ferromagnetic uranium monochalcogenides US and USe at U N4,5 absorption edges in the soft X-ray region. The obtained N4;5 XMCD signal of US was comparable to the M4,5 XMCD signal obtained in previous studies. From the sum-rule analysis of XMCD data, it was shown that the estimated ratios of orbital magnetic moment to spin magnetic moment |μL/μS| were almost the same for US and USe. The analysis of the XAS branching ratio indicated an increase in 5f electron occupation number from US to USe, which may suppress the increase in |μL/μS|.

AB - X-ray magnetic circular dichroism (XMCD) was measured for the ferromagnetic uranium monochalcogenides US and USe at U N4,5 absorption edges in the soft X-ray region. The obtained N4;5 XMCD signal of US was comparable to the M4,5 XMCD signal obtained in previous studies. From the sum-rule analysis of XMCD data, it was shown that the estimated ratios of orbital magnetic moment to spin magnetic moment |μL/μS| were almost the same for US and USe. The analysis of the XAS branching ratio indicated an increase in 5f electron occupation number from US to USe, which may suppress the increase in |μL/μS|.

KW - Ferromagnetism

KW - Magnetic circular dichroism

KW - Uranium compounds

KW - X-ray absorption

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