Kerr detection of acoustic spin transport in GaAs (110) quantum wells

Kerr detection of acoustic spin transport in GaAs (110) quantum wells

Time-resolved Kerr reflectometry (TRKR) is used to investigate the long-range transport of spins by surface acoustic waves in undoped GaAs (110) quantum wells. TRKR measurements under an applied magnetic field demonstrate the coherent precession of the optically generated electron spin during acoust...

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Bibliographic Details
Published in:Applied physics letters Vol. 97; no. 24; pp. 242110 - 242110-3
Main Authors: Hernández-Mínguez, A., Biermann, K., Lazić, S., Hey, R., Santos, P. V.
Format: Journal Article
Language:English
Published: American Institute of Physics 13-12-2010
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Summary:Time-resolved Kerr reflectometry (TRKR) is used to investigate the long-range transport of spins by surface acoustic waves in undoped GaAs (110) quantum wells. TRKR measurements under an applied magnetic field demonstrate the coherent precession of the optically generated electron spin during acoustic transport over several micrometers and yield information about the relaxation processes for moving spins.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3524218