Decay of polar-optical phonons in semiconductors
- 15 May 1974
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 9 (10) , 4277-4280
- https://doi.org/10.1103/physrevb.9.4277
Abstract
In electrical transport in compound semiconductors, the polar optical phonons can be driven from equilibrium by energetic phonon emission from the electrons. These phonons decay via bulk interactions with the acoustic modes through anharmonic terms of the crystal potential and through the second-order electric moment, or second-order piezoelectric, of the lattice. The relaxation rates for these processes are calculated and applied to InSb. It is found that the second-order electric moment dominates the decay of the polar modes although the two processes are comparable in magnitude.Keywords
This publication has 9 references indexed in Scilit:
- Energy-Diffusion Equation in Hot-Electron Problems: Disturbance of the Polar-Optical-Phonon DistributionPhysical Review B, 1973
- The relaxation of phononsJournal of Physics C: Solid State Physics, 1973
- Photoexcited hot phonons and phonon lifetimes in GaAsOptics Communications, 1973
- Dominant Second-Order Dipole-Moment Contribution in the Infrared Absorption of III-V CompoundsPhysical Review Letters, 1972
- Disturbed Phonon Distribution in Polar SemiconductorsJournal of Applied Physics, 1972
- The third-order elastic constants of indium antimonideProceedings of the Physical Society, 1967
- Anharmonic Decay of Optical PhononsPhysical Review B, 1966
- Electron scattering in InSbJournal of Physics and Chemistry of Solids, 1957
- Electrons in lattice fieldsAdvances in Physics, 1954