TY - JOUR
T1 - Ultraviolet Photoemission Study of High-Tc Superconductor (La1-xSrx)2CuO4-δ
AU - Takahashi, Takashi
AU - Maeda, Fumihiko
AU - Hosoya, Shoichi
AU - Sato, Masatoshi
PY - 1987/4
Y1 - 1987/4
N2 - Ultraviolet photoemission spectra of high-Tc superconductor (La1-xSrx)2CuO4-δ, (x=0.075 and δ≦0.04) are presented. The experimental result was compared with the band calculations of La2CuO4 by Mattheiss and Takegahara et al. It was found that as regards the valence-band width (about 7 eV) the experiment and the calculations are in good agreement with each other, but the position of the calculated valence bands contributed mainly by weakly bonding Cu(3d)-O(2p) states are shiftd toward the lower binding energy by about 1 eV with respect to the experiment. The possible origins for this discrepancy were discussed.
AB - Ultraviolet photoemission spectra of high-Tc superconductor (La1-xSrx)2CuO4-δ, (x=0.075 and δ≦0.04) are presented. The experimental result was compared with the band calculations of La2CuO4 by Mattheiss and Takegahara et al. It was found that as regards the valence-band width (about 7 eV) the experiment and the calculations are in good agreement with each other, but the position of the calculated valence bands contributed mainly by weakly bonding Cu(3d)-O(2p) states are shiftd toward the lower binding energy by about 1 eV with respect to the experiment. The possible origins for this discrepancy were discussed.
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U2 - 10.1143/JJAP.26.L349
DO - 10.1143/JJAP.26.L349
M3 - Article
AN - SCOPUS:0023330863
SN - 0021-4922
VL - 26
SP - L349-L351
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
IS - 4 A
ER -