Spin dynamics in semiconductors

Electron Spin Dynamics in Semiconductors without Inversion Symmetry

Recent consideration of spin based quantum computation, optical switches, magnetic memory cells, etc. [1] mandates an improved understanding of spin dynamics and, in particular, the spin relaxation rate [2]. The most promising materials for device purposes, III-V and II-VI compounds, have been shown [3] to have spin relaxation rates dominated by the D’yakonov-Perel’ (DP) mechanism at moderate t...

Spin diffusion in semiconductors

The behavior of spin diffusion in doped semiconductors is shown to be qualitatively different than in undoped (intrinsic) ones. Whereas a spin packet in an intrinsic semiconductor must be a multiple-band disturbance, involving inhomogeneous distributions of both electrons and holes, in a doped semiconductor a single-band disturbance is possible. For n-doped nonmagnetic semiconductors the enhanc...

Single Spin Coherence in Semiconductors

Els ts orn 2. S ingle Electron Spins in Quantum Dots 3 2.1. O ptical selection rules and the Faraday effect 4 2.2. M easuring a single electron spin by Kerr rotation 6 2.3. S pin dynamics of a single electron spin 9 2.4. U ltrafast manipulation using the optical Stark effect 13 2.5. C onclusions 17 3. F ew Magnetic Spins in Quantum Wells 18 3.1. M n-ions in GaAs as optical spin centers 19 3.2. ...

Spin Injection into Semiconductors

S 713 FRIDAY AFTERNOON, 8 NOVEMBER 2013 PLAZA BALLROOM F, 1:30 TO 4:30 Session HB SPIN INJECTION INTO SEMICONDUCTORS Georg Schmidt, Chair

Spin Injection into Amorphous Semiconductors