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Valence-band structure of studied by photoemission and S X-ray emission spectroscopies

✍ Scribed by K. Kitamoto; Y. Taguchi; T. Noda; Y. Fujita; K. Mimura; K. Ichikawa; H. Ishibashi; S. Shin; O. Aita

Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
166 KB
Volume
378-380
Category
Article
ISSN
0921-4526

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✦ Synopsis

Valence-band photoemission and S L X-ray emission spectroscopies have been performed for CuIr 2 S 4 in order to investigate the electronic structure of the valence band. A structure around 1 eV below the Fermi level in the photoemission spectrum consists of Ir 5d as well as S 3p by taking into account its photon-energy dependent intensity. The S L 2;3 emission spectrum also shows a structure around 1 eV below the Fermi level, indicating that the state around 1 eV has the d-like or s-like character. These results indicate that S 3p has contribution to the electronic states near the Fermi level to some extent, and that the hybridization of Ir 5d with S 3p is important in understanding the electronic property of CuIr 2 S 4 .

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