Negative activation volumes of defects in solids
- 15 May 1980
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 21 (10), 4898-4899
- https://doi.org/10.1103/physrevb.21.4898
Abstract
A macroscopic model has been recently proposed which permits the calculation of the formation and activation volumes of defects. It is shown that this model can adequately explain the unusual negative activation volume observed recently in AgI (and earlier in cerium). Furthermore, it can quantitatively explain the large (∼ 300%) temperature variation of from room temperature up to 400°K. The latter justifies an earlier proposal of the authors that the thermal-expansion coefficient of the formation (or activation) volume of a defect can exceed the bulk coefficient by an order (or orders) of magnitude.
Keywords
This publication has 10 references indexed in Scilit:
- Calculation of the formation volume of vacancies in solidsPhysical Review B, 1978
- Elastic behavior near phase transitions with negative dP/dTJournal of Geophysical Research, 1978
- Effect of pressure on ionic conductivity in rubidium silver iodide and silver iodidePhysical Review B, 1978
- The formation volume of Frenkel defect in silver halidesJournal of Physics and Chemistry of Solids, 1978
- Etude de l'autodiffusion sous pression hydrostatique dans la phase cubique a faces centrees du ceriumJournal of Physics and Chemistry of Solids, 1976
- Pressure and temperature derivatives of the isotropic polycrystalline shear modulus for 65 elementsJournal of Physics and Chemistry of Solids, 1974
- Elastic behaviour near polymorphic transitions: Silver iodideJournal of Physics and Chemistry of Solids, 1974
- Pressure Dependence of Ionic Conductivity in KCl, NaCl, KBr, and NaBrPhysical Review B, 1972
- Pressure derivatives of the elastic constants of NaCl and KCl at 295°K and 195°KJournal of Physics and Chemistry of Solids, 1965
- The Variation of the Adiabatic Elastic Constants of KCl, NaCl, CuZn, Cu, and Al with Pressure to 10,000 BarsPhysical Review B, 1949