| Numéro |
J. Phys. Colloques
Volume 42, Numéro C6, Décembre 1981
International Conference on Phonon Physics
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|
|---|---|---|
| Page(s) | C6-758 - C6-760 | |
| DOI | https://doi.org/10.1051/jphyscol:19816223 | |
International Conference on Phonon Physics
J. Phys. Colloques 42 (1981) C6-758-C6-760
DOI: 10.1051/jphyscol:19816223
1 High Pressure Research Center, Polish Academy of Sciences, Warsaw, Sokolowska 29, Poland
2 Department of Physics, Osaka University, 1-1 Machikane-yama, Toyonaka, 560 Japan
J. Phys. Colloques 42 (1981) C6-758-C6-760
DOI: 10.1051/jphyscol:19816223
PHONON INDUCED ANOMALOUS RESISTIVITY IN STRUCTURAL PHASE TRANSITION OF PbSnTe
T. Suski1 et S . Katayama21 High Pressure Research Center, Polish Academy of Sciences, Warsaw, Sokolowska 29, Poland
2 Department of Physics, Osaka University, 1-1 Machikane-yama, Toyonaka, 560 Japan
Abstract
We report an anomalous electrical resistivity increment Ɗρ on PbSnTe near the vicinity of the structural phase transition temperature Tc. Applying hydrostatic pressure lowers Tc and leads to a decrease of Ɗρ. It is reasonably interpreted that Ɗρ is due to the free carrier scattering from the soft TO phonon. The observed initial slope of Tc with increasing pressure is also discussed by using the Littlewood formula.