Electronic structure of Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8/ high-T/sub c/ superconductors
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
We compare the energy-band structure of the T/sub c/ = 85 K phase of Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8/ with that of nonsuperconducting La/sub 2/SrCu/sub 2/O/sub 6/, which has an analogous double-perovskite structure but lacks the Bi-O intergrowths. We also compare the band structures of two alternate Bi/sub 2/Sr/sub 2/CaCu/sub 2/O/sub 8/ crystal structures to illustrate the consequences of rearranging the O atoms in the Bi-O intergrowth region. Finally, we discuss the effects of Bi-O intergrowths, modulated Bi-O layers, and changes in the number of CuO/sub 2/ layers on the band structure and on superconductivity.
- Research Organization:
- IBM Research Division, Almaden Research Center, San Jose, California 95120-6099
- OSTI ID:
- 7202918
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 38:1; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COMPARATIVE EVALUATIONS
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
ELECTRONIC STRUCTURE
ENERGY LEVELS
FERMI LEVEL
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
OXIDES
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COMPARATIVE EVALUATIONS
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
ELECTRONIC STRUCTURE
ENERGY LEVELS
FERMI LEVEL
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
OXIDES
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS