O 1s x-ray absorption spectroscopy of Tl sub 2 Ba sub 2 Ca sub 3 O sub 10 high- T sub C superconductors
Conference
·
· AIP Conference Proceedings (American Institute of Physics); (United States)
OSTI ID:5043913
- Department of Physics and New York State Institute on Superconductivity, State University of New York at Buffalo, New York 14260 (United States)
- AT T Bell Laboratories, Murray Hill, New Jersey 07974 (United States)
- Department of Chemistry, State University of New York at Buffalo, New York 14260 (United States)
- Brookhaven National Laboratory, Upton, New York 11973 (United States)
X-ray absorption around oxygen K-edge of Tl{sub 2}Ba{sub 2}Ca{sub 2}Cu{sub 3}O{sub 10} high-{ital T}{sub {ital C}} superconductors was measured by means of a bulk sensitive x-ray fluorescence yield detection method. Three distinct pre-edge peaks are revealed. They are ascribed to core-level excitations of oxygen 1s electrons to empty states at Fermi level which have predominantly oxygen 2p character. These oxygen holes are located in CuO{sub 2}, BaO and TlO planes. The strong dependence of {ital T}{sub {ital C}} on oxygen holes concenration on O(1) site in CuO{sub 2} layer is found.
- DOE Contract Number:
- AC02-76CH00016; FG02-87ER45283
- OSTI ID:
- 5043913
- Report Number(s):
- CONF-900990--
- Journal Information:
- AIP Conference Proceedings (American Institute of Physics); (United States), Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Vol. 219:1; ISSN APCPC; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
360207 -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ABSORPTION SPECTROSCOPY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELECTRON TRANSFER
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
FERMI LEVEL
HIGH-TC SUPERCONDUCTORS
HOLES
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SPECTRA
SPECTROSCOPY
SUPERCONDUCTORS
THALLIUM COMPOUNDS
THALLIUM OXIDES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
X-RAY SPECTRA
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
360207 -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
ABSORPTION SPECTROSCOPY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELECTRON TRANSFER
ELEMENTS
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
FERMI LEVEL
HIGH-TC SUPERCONDUCTORS
HOLES
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SPECTRA
SPECTROSCOPY
SUPERCONDUCTORS
THALLIUM COMPOUNDS
THALLIUM OXIDES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
X-RAY SPECTRA