16 June 2004 Spins...free of charge
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Quantum interference of single and two photon absorption pathways connecting valence and conduction band states in a semiconductor allow one to generate spin currents with or without charge currents. The underlying principles for these generation processes are outlines. We offer experimental demonstration of pure spin currents in GaAs using two color beams configured collinearly to produce spatially homogeneous currents, or non-collinearly to produce spin current gratings.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Henry M. van Driel, Henry M. van Driel, Yaser Kerachian, Yaser Kerachian, Beata Derkowska, Beata Derkowska, Ravi D. Bhat, Ravi D. Bhat, John E. Sipe, John E. Sipe, Martin Stevens, Martin Stevens, Arthur L. Smirl, Arthur L. Smirl, } "Spins...free of charge", Proc. SPIE 5352, Ultrafast Phenomena in Semiconductors and Nanostructure Materials VIII, (16 June 2004); doi: 10.1117/12.527098; https://doi.org/10.1117/12.527098

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