Electronic structure of Cr1−δS (δ=0, 0.17) with NiAs-type crystal structure期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Electronic structure of Cr_1−δS (δ=0, 0.17) with NiAs-type crystal structure

Authors:	M KoyamaH Sato Y UedaC Hirai M Taniguchi

Institution:	^a Kure National College of Technology, Agaminami 2-2-11, Kure 737-8506, Japan ^b Graduate School of Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-Hiroshima 739-8526, Japan ^c Hiroshima Synchrotron Radiation Center, Hiroshima University, Kagamiyama 2-313, Higashi-Hiroshima 739-8526, Japan

Abstract:	Valence-band and conduction-band the electronic structure of the CrS (δ=0) and Cr₅S₆ (δ=0.17) has been investigated by means of photoemission and inverse-photoemission spectroscopies. The bandwidth of the valence bands of Cr₅S₆ (8.5 eV) is wider than that of CrS (8.1 eV), though the Cr 3d partial density of states evaluated from the Cr 3p-3d resonant photoemission spectroscopy is almost unchanged between the two compounds concerning shapes as well as binding energies. The Cr 3d (t_2g) exchange splitting energies of CrS and Cr₅S₆ are determined to be 3.9 and 3.3 eV, respectively.

Keywords:	71 20 Be 79 60 &minus i
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