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

Journal Article · Wed Dec 04 00:00:00 EST 2013 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4848435· OSTI ID:22261858

Rudolph, J.; Buß, J. H.; Hägele, D. ^[1]; Semond, F. ^[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)

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.

• OSTI ID: 22261858
• Journal Information: AIP Conference Proceedings, Vol. 1566, 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); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DENSITY
ELECTRONS
GALLIUM NITRIDES
RELAXATION
ROTATION
SEMICONDUCTOR MATERIALS
SPECTROSCOPY
SPIN
TIME RESOLUTION