| Numéro |
J. Phys. Colloques
Volume 42, Numéro C6, Décembre 1981
International Conference on Phonon Physics
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|---|---|---|
| Page(s) | C6-152 - C6-154 | |
| DOI | https://doi.org/10.1051/jphyscol:1981646 | |
International Conference on Phonon Physics
J. Phys. Colloques 42 (1981) C6-152-C6-154
DOI: 10.1051/jphyscol:1981646
1 S. Umarov Physicotechnical institute, Dushanbe, USSR
2 P. Lebedev Physical institute, Moscow, USSR
3 Department of Electrical Engineering, University of Maine, Orono, Maine 04469, U.S.A.
J. Phys. Colloques 42 (1981) C6-152-C6-154
DOI: 10.1051/jphyscol:1981646
TWO-PHONON BOUND STATES IN AMMONIUM CHLORIDE AT FINITE TEMPERATURES
A.A. Anikiev1, B.S. Umarov1, V.S. Gorelik2 et J.F. Vetelino31 S. Umarov Physicotechnical institute, Dushanbe, USSR
2 P. Lebedev Physical institute, Moscow, USSR
3 Department of Electrical Engineering, University of Maine, Orono, Maine 04469, U.S.A.
Abstract
Two-phonon density of states in 2[MATH]4 band of ammonium chloride crystal was calculated by the method of Green's temperature functions considering anharmonic phonon-phonon interaction. Theoretically calculated temperature dependence of quasibound two-phonon state is compared to the Raman scattering experiments.