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|Type:||Artigo de periódico|
|Title:||Nonparabolicity Effects On Transition Rates Due To Confined Phonons In Quantum Wells|
|Abstract:||We calculate the electron-LO-confined-phonon scattering rates in GaAs- AlGaAs quantum wells considering the influence of nonparabolicity on the energy bands. A reformulated slab model is employed to describe the confined phonon and a simple model is assumed to take these nonparabolicity effects into account. An expression for the intra and intersubband scattering rates in the extreme quantum limit is obtained. We find that the nonparabolicity increasses significantly the scattering rates in all transitions. Some scattering rates for interface modes are also reported in order to evaluate the nonparabolicity effect on the total scattering rates.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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