Transport properties of overdoped TI cuprates
Conference
·
· Journal of Superconductivity; (United States)
OSTI ID:6982257
- NEC Corporation, Tsukuba (Japan)
To explain the observed inconsistency between the negative thermopower S and the positive Hall coefficient R[sub H] in the overdoped TI cuprates, tight binding calculations are performed which include both Cu-O and O-O interactions in the CuO[sub 2] square lattice. A striking feature of the CuO[sub 2] antibonding band is that a holelike Fermi surface is formed even when the band is less than half-filled. This brings about an unusual electron state in which the Hall (cyclotron) mass along the Fermi surface is holelike but the transport mass perpendicular to it is electronlike. This electronlike transport mass contributes to the negative thermopower. 14 refs., 2 figs.
- OSTI ID:
- 6982257
- Report Number(s):
- CONF-930710--
- Journal Information:
- Journal of Superconductivity; (United States), Journal Name: Journal of Superconductivity; (United States) Vol. 7:3; ISSN JOUSEH; ISSN 0896-1107
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CERAMICS
CHARGED-PARTICLE TRANSPORT
COPPER COMPOUNDS
CRYSTAL DOPING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CUPRATES
ENERGY LEVELS
FERMI LEVEL
HIGH-TC SUPERCONDUCTORS
MATHEMATICAL MODELS
OXYGEN COMPOUNDS
RADIATION TRANSPORT
SUPERCONDUCTORS
THALLIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CERAMICS
CHARGED-PARTICLE TRANSPORT
COPPER COMPOUNDS
CRYSTAL DOPING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CUPRATES
ENERGY LEVELS
FERMI LEVEL
HIGH-TC SUPERCONDUCTORS
MATHEMATICAL MODELS
OXYGEN COMPOUNDS
RADIATION TRANSPORT
SUPERCONDUCTORS
THALLIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS