Model of cohesive properties and structural phase transitions in non-metallic solids
Conference
·
OSTI ID:5489771
We have developed a simple, yet microscopic and universal model for cohesive properties of solids. This model explains the physical mechanisms determining the chemical and predicts semiquantitatively static and dynamic cohesive properties. It predicts a substantial softening of the long-wavelength transverse optical phonons across the pressure induced phase transition from the zincblenda to rocksalt structure in II-VI compounds. The origin of this softening is shown to be closely related to ferroelectricity.
- Research Organization:
- Los Alamos National Lab., NM (USA). Center for Nonlinear Studies; Polska Akademia Nauk, Warsaw. Inst. Fizyki; Graz Univ. (Austria). Inst. fuer Theoretische Physik
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5489771
- Report Number(s):
- LA-UR-86-2528; CONF-860892-1; ON: DE86013832
- Resource Relation:
- Conference: 18. international conference on physics of semiconductors, Stockholm, Sweden, 11 Aug 1986
- Country of Publication:
- United States
- Language:
- English
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