Electron spin injection at a Schottky contact
- 10 September 2002
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 66 (11) , 113303
- https://doi.org/10.1103/physrevb.66.113303
Abstract
We investigate theoretically electrical spin injection at a Schottky contact between a spin-polarized electrode and a nonmagnetic semiconductor. Current and electron density spin polarizations are discussed as functions of barrier energy and semiconductor doping density. The effect of a spin-dependent interface resistance that results from a tunneling region at the contact/semiconductor interface is described. The model can serve as a guide for designing spin-injection experiments with regard to the interface properties and device structure.Keywords
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