Resonant photoemission study of pyrite-type NiS2, CoS2 and FeS2

A. Fujimori, K. Mamiya, Takashi Mizokawa, T. Miyadai, T. Sekiguchi, H. Takahashi, N. Môri, S. Suga

Research output: Contribution to journalArticle

92 Citations (Scopus)

Abstract

The electronic structure of pyrite-type NiS2, CoS2, and FeS2 has been studied by photoemission spectroscopy. From resonant photoemission studies and configuration-interaction cluster-model analysis of the spectra, NiS2 is found to be a charge-transfer-type insulator, the band gap of which is formed between the occupied S 3p and the empty Ni 3d states. Cluster-model calculations indicate that the short Fe-S distance favors the low-spin (S=0) ground state in FeS2 compared to the high-spin FeS. Resonant photoemission results indicate a sign of electron correlation in the nonmagnetic semiconductor FeS2.

Original languageEnglish
Pages (from-to)16329-16332
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume54
Issue number23
Publication statusPublished - 1996
Externally publishedYes

Fingerprint

Pyrites
Photoemission
pyrites
photoelectric emission
Electron correlations
Photoelectron spectroscopy
Ground state
Electronic structure
Charge transfer
Energy gap
Semiconductor materials
configuration interaction
charge transfer
insulators
electronic structure
ground state
spectroscopy
pyrite
electrons

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Fujimori, A., Mamiya, K., Mizokawa, T., Miyadai, T., Sekiguchi, T., Takahashi, H., ... Suga, S. (1996). Resonant photoemission study of pyrite-type NiS2, CoS2 and FeS2. Physical Review B - Condensed Matter and Materials Physics, 54(23), 16329-16332.

Resonant photoemission study of pyrite-type NiS2, CoS2 and FeS2. / Fujimori, A.; Mamiya, K.; Mizokawa, Takashi; Miyadai, T.; Sekiguchi, T.; Takahashi, H.; Môri, N.; Suga, S.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 54, No. 23, 1996, p. 16329-16332.

Research output: Contribution to journalArticle

Fujimori, A, Mamiya, K, Mizokawa, T, Miyadai, T, Sekiguchi, T, Takahashi, H, Môri, N & Suga, S 1996, 'Resonant photoemission study of pyrite-type NiS2, CoS2 and FeS2', Physical Review B - Condensed Matter and Materials Physics, vol. 54, no. 23, pp. 16329-16332.
Fujimori A, Mamiya K, Mizokawa T, Miyadai T, Sekiguchi T, Takahashi H et al. Resonant photoemission study of pyrite-type NiS2, CoS2 and FeS2. Physical Review B - Condensed Matter and Materials Physics. 1996;54(23):16329-16332.
Fujimori, A. ; Mamiya, K. ; Mizokawa, Takashi ; Miyadai, T. ; Sekiguchi, T. ; Takahashi, H. ; Môri, N. ; Suga, S. / Resonant photoemission study of pyrite-type NiS2, CoS2 and FeS2. In: Physical Review B - Condensed Matter and Materials Physics. 1996 ; Vol. 54, No. 23. pp. 16329-16332.
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