Divalent ions in alkali halides. II. NaCl:Mn2+evaluation of vacancy jump kinetics
| Autor: | H F Symmons |
|---|---|
| Rok vydání: | 1971 |
| Předmět: |
Arrhenius equation
chemistry.chemical_classification education.field_of_study Materials science Population Kinetics General Engineering General Physics and Astronomy Thermodynamics Dielectric Condensed Matter Physics Divalent Ion symbols.namesake chemistry Vacancy defect symbols Relaxation (physics) education |
| Zdroj: | Journal of Physics C: Solid State Physics. 4:1945-1957 |
| ISSN: | 0022-3719 |
| DOI: | 10.1088/0022-3719/4/14/009 |
| Popis: | For pt. I see abstr. a72486 of 1970. Recent evaluations of the frequencies of the dielectric relaxation modes in NaCl doped with Mn2+ and of the rates of two of the four types of jump available to a vacancy attached to a divalent ion, together with an experimental assessment of dipole population, are used as the basis of a reappraisal of an earlier experiment on anelastic relaxation by Dreyfus and Laibowitz (1964). It is shown that for the NaCl:Mn2+ system a new decomposition of the anelastic loss peaks is required which includes all of the relaxation modes. The kinetics of the vacancy jump rates Wi can be expressed in the Arrhenius form Wi=Piexp(-hi/kT). |
| Databáze: | OpenAIRE |
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