TY - JOUR
T1 - Photoemission study of pyrite-type transition-metal chalcogenides MS2 - xSex (M=Fe, Co, Ni)
AU - Mamiya, K.
AU - Mizokawa, T.
AU - Fujimori, A.
AU - Takahashi, H.
AU - Môri, N.
AU - Miyadai, T.
AU - Suga, S.
AU - Chandrasekharan, Nirmala
AU - Krishnakumar, S. R.
AU - Sarma, D. D.
PY - 1997/7
Y1 - 1997/7
N2 - 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.
AB - 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.
KW - Electronic structure
KW - Metal-insulator transition
KW - Photoemission spectroscopy
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U2 - 10.1016/S0921-4526(97)00243-3
DO - 10.1016/S0921-4526(97)00243-3
M3 - Article
AN - SCOPUS:0031192877
SN - 0921-4526
VL - 237-238
SP - 390
EP - 391
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
ER -