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VOLUME 47 (1988) | ISSUE 7 | PAGE 340
Accumulation of the decay products of nonequilibrium optical phonons in a GaAs-AIxGa1-xAs superlattice
An increment in the electron temperature in a photoexcited GaAs-Alx Gaj _xAs superlattice stems from a long-lived nonequilibrium population of vibrational modes with a frequency half that of a longitudinal optical (LO) phonon.