Published March 1, 1983
| Version v1
Journal article
Thermoelectric properties of GeTe at high hydrostatic pressure up to 8.5 GPa and its valence-band structure
Description
The thermopower and the relative electrical resistance of rhombohedral α-GeTe and orthorhombic #betta#-GeTe polycrystalline samples with hole density between 3.9 x 1020 and 2 x 1021 cm-3 are measured under hydrostatic pressure up to 8.5 GPa at room temperature. The phase transition of α-GeTe to the cubic rocksalt structure (#betta#-GeTe) reported earlier at 3.5 GPa under nonhydrostatic pressure is not observed up to 8.5 GPa. Orthorhombic #betta#-GeTe also exhibits no phase transition. The pressure dependences of the thermopower provide support for the multiple valence-band model of GeTe. (author)
Additional details
Publishing Information
- Journal Title
- Phys. Status Solidi B
- Journal Volume
- 116
- Journal Issue
- 1
- Series
- Phys. Status Solidi B.
- Journal Page Range
- 83-89
- ISSN
- 0370-1972
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- German Democratic Republic
- INIS RN
- 14777542
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- CARRIER DENSITY; CRYSTAL-PHASE TRANSFORMATIONS; ELECTRIC CONDUCTIVITY; ELECTRONIC STRUCTURE; GERMANIUM TELLURIDES; HOLES; ORTHORHOMBIC LATTICES; POLYCRYSTALS; PRESSURE DEPENDENCE; QUANTITY RATIO; THERMOELECTRIC PROPERTIES; THERMOELECTRICITY; TRIGONAL LATTICES; VERY HIGH PRESSURE
- Descriptors DEC
- CHALCOGENIDES; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CRYSTALS; ELECTRICAL PROPERTIES; ELECTRICITY; GERMANIUM COMPOUNDS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; TELLURIDES; TELLURIUM COMPOUNDS