TY - JOUR
T1 - Photoemission study of metallic but non-superconducting and insulating copper oxides
AU - Mizokawa, T.
AU - Namatame, H.
AU - Fujimori, A.
AU - Eisaki, H.
AU - Uchida, S.
AU - Akeyama, K.
AU - Kuroda, H.
AU - Kondoh, H.
AU - Kosugi, N.
PY - 1991/12/1
Y1 - 1991/12/1
N2 - The electronic structure of the metallic but non-superconducting copper oxide La4BaCu5O13 and formally Cu3+ insulator NaCuO2 is studied by photoemission spectroscopy and cluster model calculations. As for La4BaCu5O13, a Fermi edge has been observed and the valence band and the Cu 2p core level spectra resemble those of Cu-oxide superconductors. From the analysis of the spectra of NaCuO2, the charge transfer energy Δ is found to be negative and the band gap is of a p-p type.
AB - The electronic structure of the metallic but non-superconducting copper oxide La4BaCu5O13 and formally Cu3+ insulator NaCuO2 is studied by photoemission spectroscopy and cluster model calculations. As for La4BaCu5O13, a Fermi edge has been observed and the valence band and the Cu 2p core level spectra resemble those of Cu-oxide superconductors. From the analysis of the spectra of NaCuO2, the charge transfer energy Δ is found to be negative and the band gap is of a p-p type.
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U2 - 10.1016/0921-4534(91)91750-X
DO - 10.1016/0921-4534(91)91750-X
M3 - Article
AN - SCOPUS:0026372639
SN - 0921-4534
VL - 185-189
SP - 1053
EP - 1054
JO - Physica C: Superconductivity and its applications
JF - Physica C: Superconductivity and its applications
IS - PART 2
ER -