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Title: Dyakonov-perel electron spin relaxation in a highly degenerate wurtzite semiconductor

The doping density dependence of the electron spin lifetime in n-type bulk GaN is investigated up to the highly degenerate regime by time-resolved Kerr-rotation spectroscopy. We find a non-monotonic doping density dependence with maximum spin lifetimes at the onset of degeneracy. The reduction of spin lifetimes in the degenerate regime shows a weak τ{sub s}∝n{sub D}{sup −2/3} density dependence, in full agreement with Dyakonov-Perel theory.
Authors:
; ;  [1] ;  [2]
  1. Arbeitsgruppe Spektroskopie der kondensierten Materie, Ruhr-Universität Bochum, Universitätsstraße 150, D-44780 Bochum (Germany)
  2. Centre de Recherche sur l'Hétéro-Epitaxie et ses Applications, Centre National de la Recherche Scientifique, Sophia Antipolis, Valbonne (France)
Publication Date:
OSTI Identifier:
22261858
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1566; Journal Issue: 1; Conference: ICPS 2012: 31. international conference on the physics of semiconductors, Zurich (Switzerland), 29 Jul - 3 Aug 2012; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; DENSITY; ELECTRONS; GALLIUM NITRIDES; RELAXATION; ROTATION; SEMICONDUCTOR MATERIALS; SPECTROSCOPY; SPIN; TIME RESOLUTION