Photoemission study of pyrite-type transition-metal chalcogenides MS2 - xSex (M=Fe, Co, Ni)

K. Mamiya, Takashi Mizokawa, A. Fujimori, H. Takahashi, N. Môri, T. Miyadai, S. Suga, Nirmala Chandrasekharan, S. R. Krishnakumar, D. D. Sarma

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The electronic structures of pyrite-type transition-metal chalcogenides MS2 - xSex (M = Fe, Co, Ni) has been investigated by photoemission and inverse-photoemission spectroscopy. The valence-band spectrum of ferromagnetic CoS2 does not show exchange splitting of the Co 3d peak, in disagreement with band-structure calculations. High-resolution photoemission spectra of NiS1.55Se0.45 shows spectral weight transfer from low (≃50 meV) to high (0.2-0.5 eV) binding energies, in going from the metallic to the insulating phase.

Original languageEnglish
Pages (from-to)390-391
Number of pages2
JournalPhysica B: Condensed Matter
Volume237-238
Publication statusPublished - 1997 Jul
Externally publishedYes

Fingerprint

Chalcogenides
chalcogenides
Pyrites
Photoemission
pyrites
Transition metals
photoelectric emission
transition metals
Photoelectron spectroscopy
Valence bands
Binding energy
Band structure
Electronic structure
binding energy
electronic structure
valence
high resolution
spectroscopy
pyrite

Keywords

  • Electronic structure
  • Metal-insulator transition
  • Photoemission spectroscopy

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Mamiya, K., Mizokawa, T., Fujimori, A., Takahashi, H., Môri, N., Miyadai, T., ... Sarma, D. D. (1997). Photoemission study of pyrite-type transition-metal chalcogenides MS2 - xSex (M=Fe, Co, Ni). Physica B: Condensed Matter, 237-238, 390-391.

Photoemission study of pyrite-type transition-metal chalcogenides MS2 - xSex (M=Fe, Co, Ni). / Mamiya, K.; Mizokawa, Takashi; Fujimori, A.; Takahashi, H.; Môri, N.; Miyadai, T.; Suga, S.; Chandrasekharan, Nirmala; Krishnakumar, S. R.; Sarma, D. D.

In: Physica B: Condensed Matter, Vol. 237-238, 07.1997, p. 390-391.

Research output: Contribution to journalArticle

Mamiya, K, Mizokawa, T, Fujimori, A, Takahashi, H, Môri, N, Miyadai, T, Suga, S, Chandrasekharan, N, Krishnakumar, SR & Sarma, DD 1997, 'Photoemission study of pyrite-type transition-metal chalcogenides MS2 - xSex (M=Fe, Co, Ni)', Physica B: Condensed Matter, vol. 237-238, pp. 390-391.
Mamiya K, Mizokawa T, Fujimori A, Takahashi H, Môri N, Miyadai T et al. Photoemission study of pyrite-type transition-metal chalcogenides MS2 - xSex (M=Fe, Co, Ni). Physica B: Condensed Matter. 1997 Jul;237-238:390-391.
Mamiya, K. ; Mizokawa, Takashi ; Fujimori, A. ; Takahashi, H. ; Môri, N. ; Miyadai, T. ; Suga, S. ; Chandrasekharan, Nirmala ; Krishnakumar, S. R. ; Sarma, D. D. / Photoemission study of pyrite-type transition-metal chalcogenides MS2 - xSex (M=Fe, Co, Ni). In: Physica B: Condensed Matter. 1997 ; Vol. 237-238. pp. 390-391.
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AU - Môri, N.

AU - Miyadai, T.

AU - Suga, S.

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