Strain dependent electron spin dynamics in bulk cubic GaN

Journal Article · Sat Mar 07 00:00:00 EST 2015 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4914069· OSTI ID:22413205

Schaefer, A.; Buß, J. H.; Hägele, D.; Rudolph, J. ^[1]; Schupp, T.; Zado, A.; As, D. J. ^[2]

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1. Arbeitsgruppe Spektroskopie der kondensierten Materie, Ruhr-Universität Bochum, Universitätsstraße 150, D-44780 Bochum (Germany)
2. Department of Physics, University of Paderborn, Warburger Str. 100, D-33095 Paderborn (Germany)

The electron spin dynamics under variable uniaxial strain is investigated in bulk cubic GaN by time-resolved magneto-optical Kerr-rotation spectroscopy. Spin relaxation is found to be approximately independent of the applied strain, in complete agreement with estimates for Dyakonov-Perel spin relaxation. Our findings clearly exclude strain-induced relaxation as an effective mechanism for spin relaxation in cubic GaN.

• OSTI ID: 22413205
• Journal Information: Journal of Applied Physics, Vol. 117, Issue 9; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
APPROXIMATIONS
CUBIC LATTICES
ELECTRONS
GALLIUM NITRIDES
KERR EFFECT
RELAXATION
SPECTROSCOPY
SPIN
STRAINS
TIME RESOLUTION