Anisotropy in the near-edge absorption fine structure of YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/

Journal Article · Fri Jan 01 04:00:00 EST 1988 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.37.635· OSTI ID:5530672

Batson, P E; Chisholm, M F

We have observed orientational anisotropy of the near-edge absorption fine structure for the Cu 2p and O 1s excitations in single crystals of YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/ using electron-energy-loss spectroscopy. The O 1s absorption results suggest that O-derived holes near the Fermi level have p/sub x//sub ,//sub y/ symmetry. The Cu 2p edge is weakly anisotropic and consistent with some holes having d/sub z//sub =/ symmetry.

• Research Organization: IBM Thomas J. Watson Research Center, Yorktown Heights, New York 10598
• OSTI ID: 5530672
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 37:1; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ABSORPTION SPECTRA
ALKALINE EARTH METAL COMPOUNDS
ANISOTROPY
BAND THEORY
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
ELECTRON SPECTROSCOPY
ENERGY-LOSS SPECTROSCOPY
FINE STRUCTURE
HOLES
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
SPECTRA
SPECTROSCOPY
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES