Variable normal-state transport properties of Bi sub 2 Sr sub 2 CaCu sub 2 O sub 8 minus y
- Department of Physics, University of California at Berkeley, Berkeley, CA (US) Materials and Chemical Sciences Division of the Lawrence Berkeley Laboratory, Berkeley, California 94720 (US)
The normal-state thermoelectric power {ital S} and resistivity {rho} of crystalline Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8{minus}{ital y}} are strongly influenced by oxygen configuration. In general, the temperature dependences of the coefficients follow simple empirical expressions. For the {ital ab}-plane and {ital c}-axis thermopower, {ital S}{similar to}{ital A}+{ital BT}, while for the {ital ab}-plane resistivity, {rho}{similar to}{ital T}{sup {alpha}} exp({Delta}/{ital k}{sub {ital B}}T). Only {ital A} and {Delta} depend on oxygen configuration. These expressions may hold also for other classes of high-{ital T}{sub {ital c}} superconducting oxides and are suggestive of and place restrictions on normal-state transport models; normal-state transport models should in turn relate to superconductivity mechanisms.
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 6964690
- Journal Information:
- Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 41:4; ISSN 0163-1829; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ANISOTROPY
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
LOW TEMPERATURE
MONOCRYSTALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
TEMPERATURE DEPENDENCE
THERMOELECTRIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS