Electron spin operation by electric fields: spin dynamics and spin injection

Details Electron spin operation by electric fields: spin dynamics and spin injection Electron spin operation by electric fields: spin dynamics and spin injection

2003-09-18

arxiv.org/abs/cond-mat/0309441v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

A plenary paper at the 11th Intern. Conf. on Narrow Gap Semiconductors (Buffalo, NY, June 2003). To be published in Physica E

Scientific paper

10.1016/j.physe.2003.08.002

Spin-orbit interaction couples electron spins to electric fields and allows electrical monitoring of electron spins and electrical detection of spin dynamics. Competing mechanisms of spin-orbit interaction are compared, and optimal conditions for the electric operation of electrons spins in a quantum well by a gate voltage are established. Electric spin injection into semiconductors is discussed with a special emphasis on the injection into ballistic microstructures. Dramatic effect of a long range Coulomb interaction on transport phenomena in space-quantized low-dimensional conductors is discussed in conclusion.

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