%0 Journal Article
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%@nexthigherunit 8JMKD3MGPCW/3ESR3H2
%@archivingpolicy denypublisher denyfinaldraft24
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%@resumeid 8JMKD3MGP5W/3C9JHDN
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%@usergroup marciana
%@usergroup sergio
%3 interference impurity.pdf
%X A calculation of the electron -LA phonon relaxation time of a two dimensional electron gas under the action of a strong magnetic field is performed using a memory function formalism. It is well known that the inverse of the transport relaxation time is the sum of the contributions from electron-phonon interaction adn from impurity elasctic scattering. In this work we are dealing with the electron-LA phonon scattering contribution which is the important phonon scattering mechanism at low temperatures. We take into account, through vertex corrections inthe diffusive pole approximation, the effect on phonon scattering due to the presence of impurities in the material, which renormalizes the polarization function. The effect of temperature on the renormalized electron-phonon relaxation time is discussed and we show that it yields a non-zero resistivity in the phonon channel scattering at zero temperature.
%N 3
%T Interference of Impurity and Phonon-Scattering in The Magnetotransport Of 2-Dimensional Electron-Systems
%@secondarytype PRE PI
%K MATERIALS PHYSICS, Impurities, Two-dimensional electron, Phonon scattering,  FÍSICA DE MATERIAIS, Impureza, Eletron bi-dimensional.
%@visibility shown
%@group LAS-INPE-MCT-BR
%@group LAS-INPE-MCT-BR
%@secondarykey INPE-12945-PRE/8224
%@copyholder SID/SCD
%@issn 0749-6036
%2 sid.inpe.br/marciana/2005/07.18.17.32.41
%@affiliation Instituto Nacional de Pesquisas Espaciais, Laboratório Associado de Sensores e Materiais, (INPE. LAS)
%@affiliation Instituto Nacional de Pesquisas Espaciais, Laboratório Associado de Sensores e Materiais, (INPE. LAS)
%@affiliation Centro Brasileiro de Pesquisas Físicas (CBPF)
%@project MATCON: Física da matéria condensada
%B Superlattices and Microstructures
%P 313-315
%4 sid.inpe.br/marciana/2005/07.18.17.32
%D 1992
%V 12
%A Leal, Carlos Eduardo,
%A Lima, Ivan Costa da Cunha,
%A Troper, A.,
%@dissemination WEBSCI
%@area FISMAT