Regensburg 2007 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 1: Tutorial on Semiconductor Spintronics

HL 1.2: Tutorium

Sonntag, 25. März 2007, 15:00–16:00, H1

Spin dynamics and coherence in semiconductors — •David Awschalom — University of California, Santa Barbara, CA

The ability to optically measure coherent ensembles of spin polarized car-riers in semiconductors has enabled numerous advances in spintronics and quantum information processing. Optoelectronic experiments reveal new capa-bilities of generating spin polarization through all-electrical means with-out magnetic materials or external magnetic fields. We will provide an overview of optical studies exploring spin dynamics and coherence in con-ventional and magnetically-doped semiconductors, followed by recent meas-urements probing the all-electrical generation, transport, and manipulation of spins. These include current-induced spin polarization, the spin Hall effect, and gigahertz control of single spins.