抄録
In order to study the change of the electronic states from the charge-transfer(CT) type metal to the Mott-Hubbard(MH) one, X-ray photoemission spectra are measured on the NiAs-type (Co1-xVx)0.91S (x ≤ 0.50) and V0.91S. The asymmetry parameter α for S 2s and 2p core level spectra decrease with increasing x. This result indicates that the local density of states of S atoms at the Fermi level decreases as x increases; the system changes from the CT-type metal to the MH-one with x. The change in V 2p line shape with x suggests the possibility of the considerable hybridization between V 3d and S 3p in (Co1-xVx)0.91S at lower x region. This feature would be related to the appearance of the extra peak at binding energy EB = 2-3 eV in the valence band X-ray photoemission spectra.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 1312-1316 |
| ページ数 | 5 |
| ジャーナル | Journal of the Physical Society of Japan |
| 巻 | 65 |
| 発行部数 | 5 |
| 出版物ステータス | Published - 1996 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
これを引用
X-Ray Photoemission Spectroscopic Study on the Electronic States in the Mixed System between Charge-Transfer and Mott-Hubbard Type Metals : Co0.91S and V0.91S. / Motohashi, Teruki; Hayashi, Keiso; Matoba, Masanori; Anzai, Shuichiro; Fujimori, Atsushi.
：: Journal of the Physical Society of Japan, 巻 65, 番号 5, 1996, p. 1312-1316.研究成果: Article
}
TY - JOUR
T1 - X-Ray Photoemission Spectroscopic Study on the Electronic States in the Mixed System between Charge-Transfer and Mott-Hubbard Type Metals
T2 - Co0.91S and V0.91S
AU - Motohashi, Teruki
AU - Hayashi, Keiso
AU - Matoba, Masanori
AU - Anzai, Shuichiro
AU - Fujimori, Atsushi
PY - 1996
Y1 - 1996
N2 - In order to study the change of the electronic states from the charge-transfer(CT) type metal to the Mott-Hubbard(MH) one, X-ray photoemission spectra are measured on the NiAs-type (Co1-xVx)0.91S (x ≤ 0.50) and V0.91S. The asymmetry parameter α for S 2s and 2p core level spectra decrease with increasing x. This result indicates that the local density of states of S atoms at the Fermi level decreases as x increases; the system changes from the CT-type metal to the MH-one with x. The change in V 2p line shape with x suggests the possibility of the considerable hybridization between V 3d and S 3p in (Co1-xVx)0.91S at lower x region. This feature would be related to the appearance of the extra peak at binding energy EB = 2-3 eV in the valence band X-ray photoemission spectra.
AB - In order to study the change of the electronic states from the charge-transfer(CT) type metal to the Mott-Hubbard(MH) one, X-ray photoemission spectra are measured on the NiAs-type (Co1-xVx)0.91S (x ≤ 0.50) and V0.91S. The asymmetry parameter α for S 2s and 2p core level spectra decrease with increasing x. This result indicates that the local density of states of S atoms at the Fermi level decreases as x increases; the system changes from the CT-type metal to the MH-one with x. The change in V 2p line shape with x suggests the possibility of the considerable hybridization between V 3d and S 3p in (Co1-xVx)0.91S at lower x region. This feature would be related to the appearance of the extra peak at binding energy EB = 2-3 eV in the valence band X-ray photoemission spectra.
KW - (CoV)S
KW - Asymmetry parameter α
KW - Charge-transfer type metal
KW - Local density of states
KW - Mott-hubbard type metal
KW - XPS
UR - http://www.scopus.com/inward/record.url?scp=0030557175&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0030557175&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0030557175
VL - 65
SP - 1312
EP - 1316
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 5
ER -