Spin-Dependent Quantum and Transport Lifetimes in a Two-Dimensional Electron or Hole Gas in the Presence of Spin-Orbit Interaction
Date
2004
Authors
Xu, Wen
Vasilopoulos, P
Wang, Xiao Lin
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Abstract
A theoretical study is presented for the influence of spin-orbit interaction (SOI) induced by the Rashba effect on quantum and transport lifetimes in a two-dimensional electron or hole gas. We find that for low temperatures, the electronic transport lifetimes due to impurity scattering can differ significantly between different spin branches. In contrast, the quantum lifetimes depend very weakly on the strength of the SOI and are in line with experimental findings. For heavy holes and over a wide range of the SOI strength, the difference between transport/quantum lifetimes in different spin branches is relatively small.
Description
Keywords
Keywords: Eigenvalues and eigenfunctions; Electric fields; Electron scattering; Electron transport properties; Magnetic fields; Quantum theory; Semiconductor quantum wells; Vectors; Quantum or transport lifetimes; Spin-orbit interactions; Two-dimensional electron g Quantum or transport lifetime; Spin-orbit interaction; Two-dimensional electron gas; Two-dimensional hole gas
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Source
Physica E
Type
Journal article