Shell-model lattice dynamics and M{umlt o}ssbauer recoilless fraction of SnO
- Instituto de Fisica Rosario, 27 de Febrero 210 Bis, 2000 Rosario (Argentina)
- Departamento de Fisica, TENAES, Universidad Nacional de La Plata, C.C. 67, 1900 La Plata (Argentina)
- Instituto de Fisica de Liquidos y Sistemas Biologicos, Grupo de Fisica del Solido, C.C. 565, 1900 La Plata (Argentina)
A lattice-dynamical study of the phonon-dispersion relation in tin monoxide is presented in the framework of the shell model. The M{umlt o}ssbauer recoilless fraction {ital f}({ital T}) has been evaluated over a wide range of temperatures. Except for a temperature-independent shift, the calculated values of {minus}ln({ital f}) are in good agreement with recent M{umlt o}ssbauer spectroscopy experiments on a highly textured powder sample. The phonon density of states shows two prominent bands with practically no mixed Sn and O characters, as identified from the ion-projected densities. The calculated {mu}{sub {minus}2} moment of the spectrum is in accordance with the value obtained from the measurements. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 383170
- Journal Information:
- Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 10 Vol. 54; ISSN PRBMDO; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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