The role of the products of the decay of optical phonons
Abstract
The decay of nonequilibrium longitudinal optical phonons is investigated by abandoning the usual assumption that the decay products remain in thermodynamic equilibrium. The case when only the grand-daughter modes remain in thermodynamic equilibrium is studied. The effective lifetime of the LO mode, which is the one that would be measured by experiment, is found to decrease with increasing occupancy of the LO mode.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 28, 2013
- Source ID
- 10.1063/1.4790280
Entities
People
- A. Dyson
- Brian Kidd Ridley
Organizations
- Office of Naval Research
- University of Essex
- University of Hull