Angle-resolved photoemission investigation of the electronic band properties of YBa2Cu3O7-x(001)

Y. Sakisaka, T. Komeda, T. Maruyama, M. Onchi, H. Kato, Y. Aiura, H. Yanashima, T. Terashima, Y. Bando, K. Iijima, K. Yamamoto, K. Hirata

Research output: Contribution to journalArticlepeer-review

55 Citations (Scopus)

Abstract

The electronic energy-band properties of epitaxially grown YBa2CuO3O7-x(001) single-crystal thin films have been investigated by angle-resolved ultraviolet photoemission spectroscopy (ARUPS) with synchrotron radiation as the light source. The (001) surfaces exhibit sharp (1×1) low-energy electron-diffraction patterns. Our ARUPS data show a clear Fermi edge and dispersive nature of the valence bands, suggesting the validity of the band concept for this oxide. We determined energy-band dispersion along the directions in the bulk Brillouin zone. The experimental results are compared with the existing ground-state band calculations.

Original languageEnglish
Pages (from-to)9080-9090
Number of pages11
JournalPhysical Review B
Volume39
Issue number13
DOIs
Publication statusPublished - 1989 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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