Conduction mechanism in boron carbide

Journal Article · Sun Apr 15 04:00:00 EST 1984 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.29.4582· OSTI ID:7063582

Wood, C; Emin, D

Electrical conductivity, Seebeck-coefficient, and Hall-effect measurements have been made on single-phase boron carbides, B/sub 1-x/C/sub x/, in the compositional range 0.1< or =x< or =0.2 between room temperature and 1273 K. The results indicate that the predominant conduction mechanism is small-polaron hopping between carbon atoms at geometrically inequivalent sites.

• Research Organization: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109
• OSTI ID: 7063582
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 29:8; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
&amp; Refractories-- Physical Properties
BORON CARBIDES
BORON COMPOUNDS
CARBIDES
CARBON COMPOUNDS
CARRIER DENSITY
CRYSTAL STRUCTURE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HALL EFFECT
HIGH TEMPERATURE
MEDIUM TEMPERATURE
PHYSICAL PROPERTIES
POLARONS
QUANTITY RATIO
QUASI PARTICLES
SAMPLE PREPARATION
THERMAL CYCLING
THERMOELECTRIC PROPERTIES
VERY HIGH TEMPERATURE