Electronic and magnetic states of Mn2.97Co0.03GaC studied by soft X-ray photoemission and magnetic circular dichroism

Atsushi Matsumoto; Masanori Tsunekawa; Shigemasa Suga; Hirofumi Wada; Takayuki Muro; Tetsuya Nakamura; Shin Imada

doi:10.1143/JJAP.47.1567

Electronic and magnetic states of Mn_2.97Co_0.03GaC studied by soft X-ray photoemission and magnetic circular dichroism

Atsushi Matsumoto, Masanori Tsunekawa, Shigemasa Suga, Hirofumi Wada, Takayuki Muro, Tetsuya Nakamura, Shin Imada

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

2 Citations (Scopus)

Abstract

The electronic and magnetic states of Mn_2.97Co_0.03GaC are studied by soft X-ray photoelectron spectroscopy (SXPES) and X-ray magnetic circular dichroism (XMCD) in the Mn 2p → 3d excitation region. On the basis of the XMCD results, the contribution of the orbital magnetic moment to the Mn 3d magnetic moment is evaluated by the XMCD sum rules. The spectra obtained by SXPES show a clear change in electronic states near the Fermi level across the first-order ferromagnetic to antiferromagnetic phase transition. The experimental results are consistent with the theoretically obtained electronic structures of the two phases.

Original language	English
Pages (from-to)	1567-1569
Number of pages	3
Journal	Japanese journal of applied physics
Volume	47
Issue number	3 PART 1
DOIs	https://doi.org/10.1143/JJAP.47.1567
Publication status	Published - 2008 Mar 14
Externally published	Yes

Keywords

Band structure calculation
First-order magnetic transition
Magnetocaloric effect
Photo-electron spectroscopy
X-ray magnetic circular dichroism

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1143/JJAP.47.1567

Cite this

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title = "Electronic and magnetic states of Mn2.97Co0.03GaC studied by soft X-ray photoemission and magnetic circular dichroism",

abstract = "The electronic and magnetic states of Mn2.97Co0.03GaC are studied by soft X-ray photoelectron spectroscopy (SXPES) and X-ray magnetic circular dichroism (XMCD) in the Mn 2p → 3d excitation region. On the basis of the XMCD results, the contribution of the orbital magnetic moment to the Mn 3d magnetic moment is evaluated by the XMCD sum rules. The spectra obtained by SXPES show a clear change in electronic states near the Fermi level across the first-order ferromagnetic to antiferromagnetic phase transition. The experimental results are consistent with the theoretically obtained electronic structures of the two phases.",

keywords = "Band structure calculation, First-order magnetic transition, Magnetocaloric effect, Photo-electron spectroscopy, X-ray magnetic circular dichroism",

author = "Atsushi Matsumoto and Masanori Tsunekawa and Shigemasa Suga and Hirofumi Wada and Takayuki Muro and Tetsuya Nakamura and Shin Imada",

year = "2008",

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doi = "10.1143/JJAP.47.1567",

language = "English",

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journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",

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publisher = "Japan Society of Applied Physics",

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TY - JOUR

T1 - Electronic and magnetic states of Mn2.97Co0.03GaC studied by soft X-ray photoemission and magnetic circular dichroism

AU - Matsumoto, Atsushi

AU - Tsunekawa, Masanori

AU - Suga, Shigemasa

AU - Wada, Hirofumi

AU - Muro, Takayuki

AU - Nakamura, Tetsuya

AU - Imada, Shin

PY - 2008/3/14

Y1 - 2008/3/14

N2 - The electronic and magnetic states of Mn2.97Co0.03GaC are studied by soft X-ray photoelectron spectroscopy (SXPES) and X-ray magnetic circular dichroism (XMCD) in the Mn 2p → 3d excitation region. On the basis of the XMCD results, the contribution of the orbital magnetic moment to the Mn 3d magnetic moment is evaluated by the XMCD sum rules. The spectra obtained by SXPES show a clear change in electronic states near the Fermi level across the first-order ferromagnetic to antiferromagnetic phase transition. The experimental results are consistent with the theoretically obtained electronic structures of the two phases.

AB - The electronic and magnetic states of Mn2.97Co0.03GaC are studied by soft X-ray photoelectron spectroscopy (SXPES) and X-ray magnetic circular dichroism (XMCD) in the Mn 2p → 3d excitation region. On the basis of the XMCD results, the contribution of the orbital magnetic moment to the Mn 3d magnetic moment is evaluated by the XMCD sum rules. The spectra obtained by SXPES show a clear change in electronic states near the Fermi level across the first-order ferromagnetic to antiferromagnetic phase transition. The experimental results are consistent with the theoretically obtained electronic structures of the two phases.

KW - Band structure calculation

KW - First-order magnetic transition

KW - Magnetocaloric effect

KW - Photo-electron spectroscopy

KW - X-ray magnetic circular dichroism

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