TY - JOUR
T1 - Electronic states of core levels and valence bands for KxC60 studied by X-ray photoelectron spectroscopy
AU - Fukuda, Y.
AU - Sanada, N.
AU - Nagoshi, M.
AU - Takahashi, T.
AU - Katayama-Yoshida, H.
AU - Kikuchi, K.
AU - Suzuki, S.
AU - Ikemoto, I.
AU - Achiba, Y.
AU - Syono, Y.
AU - Tachiki, M.
N1 - Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 1991/10/10
Y1 - 1991/10/10
N2 - Electronic states of K 2p and C 1s core levels and valence bands for KχC60 (χ=0≈6.3) have been studied by X-ray photoelectron spectroscopy (XPS). We find two different chemical states of potassium with binding energy 293.8 and 294.9 eV. The K 2p 3 2 line becomes a single peak at χ = 6.3. These results are discussed in terms of the sites occupied by K in KχC60. The C 1s line (285.1 eV) for C60 is shifted by 0.3 eV to the side of higher binding energy by a very small amount of K, which is consistent with the shift of the valence band. The other line at 284.4 eV appears at 10 min evaporation (χ = 0.8). The intensity of the former is reduced and that of the latter increases with the evaporation time.
AB - Electronic states of K 2p and C 1s core levels and valence bands for KχC60 (χ=0≈6.3) have been studied by X-ray photoelectron spectroscopy (XPS). We find two different chemical states of potassium with binding energy 293.8 and 294.9 eV. The K 2p 3 2 line becomes a single peak at χ = 6.3. These results are discussed in terms of the sites occupied by K in KχC60. The C 1s line (285.1 eV) for C60 is shifted by 0.3 eV to the side of higher binding energy by a very small amount of K, which is consistent with the shift of the valence band. The other line at 284.4 eV appears at 10 min evaporation (χ = 0.8). The intensity of the former is reduced and that of the latter increases with the evaporation time.
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U2 - 10.1016/0921-4534(91)90117-H
DO - 10.1016/0921-4534(91)90117-H
M3 - Article
AN - SCOPUS:0026238624
VL - 181
SP - 320
EP - 324
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 4-6
ER -