Normal-state transport properties of Bi sub 2+ x Sr sub 2 minus y CuO sub 6+. delta. crystals
- AT T Bell Laboratories, Murray Hill, New Jersey 07974 (US)
Transport anisotropies of {rho}{sub {ital c}}.{rho}{sub ab}{congruent}10{sup 4} to 10{sup 5} were measured for superconducting and nonsuperconducting Bi{sub 2+{ital x}}Sr{sub 2{minus}{ital y}}CuO{sub 6{plus minus}{delta}} crystals. In superconducting samples {rho}{sub {ital ab}} increases linearly with temperature from just above {ital T}{sub {ital c}}{congruent}7 to 700 K. The implication of the {rho}{sub {ital ab}} results is that classical electron-phonon scattering mechanisms are inadequate. The anisotropy and {ital T}{sub {ital c}} for various layered superconductor systems are compared. In all crystals studied {rho}{sub {ital c}} is nonmetallic, varying as a power law {ital T}{sup {minus}{alpha}}, {alpha}{congruent}0.5--1.
- OSTI ID:
- 6952863
- Journal Information:
- Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 41:1; ISSN 0163-1829; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
ANISOTROPY
BISMUTH COMPOUNDS
BISMUTH OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON-PHONON COUPLING
HIGH TEMPERATURE
LAYERS
LOW TEMPERATURE
MEDIUM TEMPERATURE
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE