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Title: Generation of pure spin currents via Auger recombination in quantum wells with Rashba splitting

We propose a nonoptical mechanism for generating spin current via Auger recombination in semiconductor quantum wells (QWs) with spin–orbit splitting associated with structural QW asymmetry. It is shown that Auger recombination in narrow-bandgap semiconductors makes it possible to produce spin currents that exceed those that are obtained in the case of intraband as well as interband optical excitation. Analysis shows that the interference term in the expression for the Auger-recombination rate is responsible for the generation of spin currents.
Authors:
; ;  [1]
  1. Russian Academy of Sciences, Ioffe Physicotechnical Institute (Russian Federation)
Publication Date:
OSTI Identifier:
22472031
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Experimental and Theoretical Physics; Journal Volume: 121; Journal Issue: 4; Other Information: Copyright (c) 2015 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ASYMMETRY; AUGER EFFECT; CURRENTS; EXCITATION; INTERFERENCE; L-S COUPLING; ORBITS; QUANTUM WELLS; RECOMBINATION; SEMICONDUCTOR MATERIALS; SPIN