Angle-resolved photoemission investigation of the electronic band properties of YBa/sub 2/Cu/sub 3/O/sub 7-//sub x/(001)

Journal Article · Mon May 01 00:00:00 EDT 1989 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.39.9080· OSTI ID:6114570

Sakisaka, Y; Komeda, T; Maruyama, T; Onchi, M; Kato, H; Aiura, Y; Yanashima, H; Terashima, T; Bando, Y; Iijima, K; others, and

The electronic energy-band properties of epitaxially grown YBa/sub 2/CuO/sub 3/O/sub 7-//sub 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 x 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 GAMMA-X-M-GAMMA directions in the bulk Brillouin zone. The experimental results are compared with the existing ground-state band calculations.

• Research Organization: Department of Chemistry, Faculty of Science, Kyoto University, Kyoto 606, Japan
• OSTI ID: 6114570
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Vol. 39:13
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
ELECTRONIC STRUCTURE
COPPER OXIDES
YTTRIUM OXIDES
BRILLOUIN ZONES
DISPERSION RELATIONS
ELECTRON DIFFRACTION
EPITAXY
FERMI LEVEL
FILMS
MEDIUM TEMPERATURE
MONOCRYSTALS
PHOTOELECTRON SPECTROSCOPY
SYNCHROTRON RADIATION
ULTRAVIOLET RADIATION
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BREMSSTRAHLUNG
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
CRYSTALS
DIFFRACTION
ELECTROMAGNETIC RADIATION
ELECTRON SPECTROSCOPY
ENERGY LEVELS
OXIDES
OXYGEN COMPOUNDS
RADIATIONS
SCATTERING
SPECTROSCOPY
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
ZONES
360204* - Ceramics
Cermets
& Refractories- Physical Properties