Photoemission study of metallic but non-superconducting and insulating copper oxides

T. Mizokawa; H. Namatame; A. Fujimori; H. Eisaki; S. Uchida; K. Akeyama; H. Kuroda; H. Kondoh; N. Kosugi

doi:10.1016/0921-4534(91)91750-X

Photoemission study of metallic but non-superconducting and insulating copper oxides

T. Mizokawa^*, H. Namatame, A. Fujimori, H. Eisaki, S. Uchida, K. Akeyama, H. Kuroda, H. Kondoh, N. Kosugi

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	1053-1054
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	185-189
Issue number	PART 2
DOIs	https://doi.org/10.1016/0921-4534(91)91750-X
Publication status	Published - 1991 Dec 1
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/0921-4534(91)91750-X

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title = "Photoemission study of metallic but non-superconducting and insulating copper oxides",

abstract = "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.",

author = "T. Mizokawa and H. Namatame and A. Fujimori and H. Eisaki and S. Uchida and K. Akeyama and H. Kuroda and H. Kondoh and N. Kosugi",

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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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JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

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Photoemission study of metallic but non-superconducting and insulating copper oxides

Abstract

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