X-ray absorption study of the metal-nonmetal transition in nis and ni1-xmxs (M=fe and co)

Motohiko Nakamura, Hirofumi Namatame, Atsushi Fujimori, Maurizio Sacchi, John C. Fuggle, Akira Misu, Takeshi Mamori, Hikaru Tamura, Masanori Matoba, Shuichiro Anzai

Research output: Contribution to journalArticle

Abstract

We have studied the electronic structure of NiS using Ni 2p X-ray absorption spectroscopy and subsequent cluster-model analysis. The results indicate that with Fe substitution or with decreasing temperature, the S 3p-to-Ni 3d charge-transfer energy increases and the Ni 3d-S 3p transfer integral decreases leading to the increase in the band gap and with Co substitution the band widths increase through the Ni 3d-to-Co 3d hybridization leading to the collapse of the bandgap.

Original languageEnglish
Pages (from-to)306-307
Number of pages2
JournalJapanese Journal of Applied Physics
Volume32
Issue numberS3
DOIs
Publication statusPublished - 1993

Fingerprint

Nonmetals
X ray absorption
Electron transitions
Energy gap
Substitution reactions
transition metals
substitutes
X ray absorption spectroscopy
Metals
Electronic structure
Charge transfer
absorption spectroscopy
x rays
charge transfer
electronic structure
bandwidth
Bandwidth
Temperature
temperature
energy

Keywords

  • Cluster-model
  • Metal-nonmetal transition
  • NiCoS
  • NiFeS
  • NiS
  • X-ray absorption

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Nakamura, M., Namatame, H., Fujimori, A., Sacchi, M., Fuggle, J. C., Misu, A., ... Anzai, S. (1993). X-ray absorption study of the metal-nonmetal transition in nis and ni1-xmxs (M=fe and co). Japanese Journal of Applied Physics, 32(S3), 306-307. https://doi.org/10.7567/JJAPS.32S3.306

X-ray absorption study of the metal-nonmetal transition in nis and ni1-xmxs (M=fe and co). / Nakamura, Motohiko; Namatame, Hirofumi; Fujimori, Atsushi; Sacchi, Maurizio; Fuggle, John C.; Misu, Akira; Mamori, Takeshi; Tamura, Hikaru; Matoba, Masanori; Anzai, Shuichiro.

In: Japanese Journal of Applied Physics, Vol. 32, No. S3, 1993, p. 306-307.

Research output: Contribution to journalArticle

Nakamura, M, Namatame, H, Fujimori, A, Sacchi, M, Fuggle, JC, Misu, A, Mamori, T, Tamura, H, Matoba, M & Anzai, S 1993, 'X-ray absorption study of the metal-nonmetal transition in nis and ni1-xmxs (M=fe and co)', Japanese Journal of Applied Physics, vol. 32, no. S3, pp. 306-307. https://doi.org/10.7567/JJAPS.32S3.306
Nakamura, Motohiko ; Namatame, Hirofumi ; Fujimori, Atsushi ; Sacchi, Maurizio ; Fuggle, John C. ; Misu, Akira ; Mamori, Takeshi ; Tamura, Hikaru ; Matoba, Masanori ; Anzai, Shuichiro. / X-ray absorption study of the metal-nonmetal transition in nis and ni1-xmxs (M=fe and co). In: Japanese Journal of Applied Physics. 1993 ; Vol. 32, No. S3. pp. 306-307.
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AU - Fuggle, John C.

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