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- W2012384208 abstract "The influence of constant level broadening in momentum-relaxation rate and low-field mobility calculations is investigated if acoustic-phonon scattering, via deformation-potential (DP) and piezoelectric (PZ) coupling, is present in low-dimensional semiconductor heterostructures such as quantum wires or quantum wells. An approach is developed using the quasi-particle approximation on the basis of the method of Kadanoff and Baym. Calculations are done in the low carrier concentration case, neglecting screening effects and using non-degenerate carrier statistics. The role of PZ scattering is established and comparison with earlier results is made.Der Einflus einer konstanten Niveauverbreiterung in Berechnungen der Impulsrelaxationsrate und der Schwachfeldbeweglichkeit in niedrigdimensionalen Heterostrukturen wie Quantendrahten oder Quantengraben wird fur den Fall untersucht, das die Streuung an akustischen Phononen uber Deformationspotential- (DP) und piezoelektrische (PZ) Kopplung erfolgt. Es wird ein Zugang entwickelt, der die Quasiteilchennaherung auf der Basis der Methode von Kadanoff und Baym benutzt. Die Rechnungen werden fur den Fall niedriger Ladungstragerkonzentrationen durchgefuhrt. Abschirmungseffekte werden vernachlassigt und nicht entartete Ladungstragerstatistik wird benutzt. Die Rolle der piezoelektrischen Streuung wird herausgearbeitet und es erfolgt ein Vergleich mit fruheren Resultaten." @default.
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- W2012384208 date "1990-06-01" @default.
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- W2012384208 title "Influence of Level Broadening in Mobility Calculations for Low-Dimensional Semiconductor Heterostructures" @default.
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- W2012384208 doi "https://doi.org/10.1002/pssb.2221590220" @default.
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