Spin-Polarized Electron Transport in GaAs: Role of Holes

Spin-Polarized Electron Transport in GaAs: Role of Holes

Spin-polarized electron transport in GaAs is studied with emphasis on the role of holes. Sub-picosecond ac spin current pulses are produced and ambipolar spin diffusion are studied, both dominated by space charge field of holes.

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Bibliographische Detailangaben
Hauptverfasser: Ruzicka, B.A., Werake, L.K., Hui Zhao, Mover, M., Vignale, G.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
(190.7110) Ultrafast nonlinear optics
(320.7130) Ultrafast processes in condensed matter
Charge carrier processes
Electrons
Gallium arsenide
Laser excitation
Nonlinear optics
Optical harmonic generation
Optical pulses
Probes
Space vector pulse width modulation
Temperature
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Beschreibung
Zusammenfassung:Spin-polarized electron transport in GaAs is studied with emphasis on the role of holes. Sub-picosecond ac spin current pulses are produced and ambipolar spin diffusion are studied, both dominated by space charge field of holes.
ISSN:2160-9004
DOI:10.1364/CLEO.2009.JWA117