Thermal transport properties of YBa/sub 2/Cu/sub 3/O/sub 7/ superconductors

Journal Article · Thu Oct 01 00:00:00 EDT 1987 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.36.5680· OSTI ID:6140653

Uher, C; Kaiser, A B

We have measured the thermal conductivity, thermopower, Hall constant and resistivity of a YBa/sub 2/Cu/sub 3/O/sub 7/ high-T/sub c/ superconductor. The thermal conductivity shows a striking increase below the transition temperature T/sub c/, which we ascribe to an increase in lattice conduction due to a reduction in the scattering of phonons by holes as superconducting pairs form. This property, and the others we have measured, are consistent with ordinary metallic conduction mechanisms with short phonon and carrier mean free paths, and a strong interaction of phonons with a small density of hole carriers.

• Research Organization: Max-Planck-Institut fuer Festkoerperforschung, Postfach 80 06 65, 7000 Stuttgart 80, Federal Republic of Germany and Physics Department, The University of Michigan, Ann Arbor, Michigan 48109
• OSTI ID: 6140653
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 36:10; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELECTRICAL PROPERTIES
HALL EFFECT
HOLES
OXIDES
OXYGEN COMPOUNDS
PHONONS
PHYSICAL PROPERTIES
QUASI PARTICLES
SUPERCONDUCTORS
THERMAL CONDUCTIVITY
THERMODYNAMIC PROPERTIES
THERMOELECTRIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES