Electronic and magnetic nature of shandite-type A2Co3S2(A = Sn, In)

Atsushi Umetani; Eiji Nagoshi; Takashi Kubodera; Masanori Matoba

doi:10.1016/j.physb.2007.10.149

Electronic and magnetic nature of shandite-type A₂Co₃S₂(A = Sn, In)

Atsushi Umetani, Eiji Nagoshi, Takashi Kubodera, Masanori Matoba

Department of Applied Physics and Physico-Informatics

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

24 Citations (Scopus)

Abstract

We investigated electronic and magnetic nature of A₂Co₃S₂(A = Sn, In) to reveal two different characteristics of metallic Co-Sn and strongly correlated electronic Co-S bondings. Co 2p X-ray photoelectron spectroscopy (XPS) shows a complicated and mixed-valence like feature with strong satellite. This origin can be explained by two different characteristics of Co-Sn/Co-S bonding nature. This feature is consistent with characteristic electron-density distributions obtained by the maximum-entropy method (MEM)-based pattern fitting analysis and the LSDA + U band calculation.

Original language	English
Pages (from-to)	1356-1358
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	403
Issue number	5-9
DOIs	https://doi.org/10.1016/j.physb.2007.10.149
Publication status	Published - 2008 Apr 1

Keywords

Bonding nature
Electron-density
LSDA + U
MEM
SnCoS
XPS

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1016/j.physb.2007.10.149

Cite this

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title = "Electronic and magnetic nature of shandite-type A2Co3S2(A = Sn, In)",

abstract = "We investigated electronic and magnetic nature of A2Co3S2(A = Sn, In) to reveal two different characteristics of metallic Co-Sn and strongly correlated electronic Co-S bondings. Co 2p X-ray photoelectron spectroscopy (XPS) shows a complicated and mixed-valence like feature with strong satellite. This origin can be explained by two different characteristics of Co-Sn/Co-S bonding nature. This feature is consistent with characteristic electron-density distributions obtained by the maximum-entropy method (MEM)-based pattern fitting analysis and the LSDA + U band calculation.",

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AU - Nagoshi, Eiji

AU - Kubodera, Takashi

AU - Matoba, Masanori

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AB - We investigated electronic and magnetic nature of A2Co3S2(A = Sn, In) to reveal two different characteristics of metallic Co-Sn and strongly correlated electronic Co-S bondings. Co 2p X-ray photoelectron spectroscopy (XPS) shows a complicated and mixed-valence like feature with strong satellite. This origin can be explained by two different characteristics of Co-Sn/Co-S bonding nature. This feature is consistent with characteristic electron-density distributions obtained by the maximum-entropy method (MEM)-based pattern fitting analysis and the LSDA + U band calculation.

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KW - SnCoS

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