Studies of Y-Ba-Cu-O single crystals by x-ray absorption spectroscopy
Conference
·
OSTI ID:5230002
- State Univ. of New York, Buffalo, NY (United States). Dept. of Physics
- Kernforschungszentrum Karlsruhe GmbH (Germany). Inst. fuer Nukleare Festkoerperphysik
- Brookhaven National Lab., Upton, NY (United States)
- Karlsruhe Univ. (T.H.) (Germany). Inst. fuer Kristallchemie
The symmetry and density of unoccupied states of YBa{sub 2}Cu{sub 3}O{sub 7} YBa{sub 2}Cu{sub 4}O{sub 8} have been investigated by orientation dependent x-ray absorption spectroscopy on the O 1s edge using a bulk-sensitive fluorescence-yield-detection method. It has been found that the O 2p holes are distributed equally between the CuO{sub 2} planes and CuO chains and that the partial density of unoccupied O 2p states in the CuO{sub 2} planes are identical in both systems investigated. The upper Hubbard band has been observed in the planes but not in the chains in both systems. 18 refs.
- Research Organization:
- Brookhaven National Lab., Upton, NY (United States)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 5230002
- Report Number(s):
- BNL-47236; CONF-9109102--7; ON: DE92014687
- Country of Publication:
- United States
- Language:
- English
Similar Records
Studies of Y-Ba-Cu-O single crystals by x-ray absorption spectroscopy
Studies of Y-Ba-Cu-O single crystals by x-ray absorption spectroscopy
Local environment around the oxygen atoms in Y-Ba-Cu-O studied by x-ray absorption fine structure (XAFS) spectroscopy
Conference
·
Fri Jan 31 23:00:00 EST 1992
·
OSTI ID:10153990
Studies of Y-Ba-Cu-O single crystals by x-ray absorption spectroscopy
Conference
·
Tue Mar 31 23:00:00 EST 1992
· AIP Conference Proceedings (American Institute of Physics); (United States)
·
OSTI ID:5001540
Local environment around the oxygen atoms in Y-Ba-Cu-O studied by x-ray absorption fine structure (XAFS) spectroscopy
Conference
·
Tue Mar 31 23:00:00 EST 1992
· AIP Conference Proceedings (American Institute of Physics); (United States)
·
OSTI ID:5071315
Related Subjects
36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
664200 -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTROSCOPY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ENERGY LEVELS
EXCITED STATES
HIGH-TC SUPERCONDUCTORS
OXIDES
OXYGEN COMPOUNDS
SPECTRA
SPECTROSCOPY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
X-RAY SPECTRA
X-RAY SPECTROSCOPY
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
664200 -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTROSCOPY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ENERGY LEVELS
EXCITED STATES
HIGH-TC SUPERCONDUCTORS
OXIDES
OXYGEN COMPOUNDS
SPECTRA
SPECTROSCOPY
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
X-RAY SPECTRA
X-RAY SPECTROSCOPY
YTTRIUM COMPOUNDS
YTTRIUM OXIDES