Theory of Spin Orientation of Semiconductor Carriers at a Ferromagnetic Interface

Details Theory of Spin Orientation of Semiconductor Carriers at a Ferromagnetic Interface Theory of Spin Orientation of Semiconductor Carriers at a Ferromagnetic Interface

2003-02-04

arxiv.org/abs/cond-mat/0302088v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

9 pages, 7 figures, submitted to PRB

Scientific paper

A quantum theory of the spin-dependent scattering of semiconductor electrons by a Schottky barrier at an interface with a ferromagnet is presented. The reflection of unpolarized non-equilibrium carriers produces spontaneous spin-polarization in the semiconductor. If a net spin-polarization pre-exists in the semiconductor, the combination of the ferromagnet magnetization and the incident carrier polarization combine to tilt the reflected polarization in the semiconductor. The spin reflection properties are investigated as functions of the system characteristics: the Schottky barrier height, semiconductor doping and applied bias. The effect on reflection due to the variation of the barrier width with electron energy is contrasted for two means of excitation: optical or electrical. Optically excited electrons have a wider energy spread than the near-equilibrium excitation from non-magnetic ohmic contacts.

Affiliated with

Also associated with

No associations

Rating

Theory of Spin Orientation of Semiconductor Carriers at a Ferromagnetic Interface does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Theory of Spin Orientation of Semiconductor Carriers at a Ferromagnetic Interface, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Theory of Spin Orientation of Semiconductor Carriers at a Ferromagnetic Interface will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-268930