Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1787798 | Current Applied Physics | 2011 | 5 Pages |
Abstract
The spin polarization of a high g-factor bulk semiconductor is theoretically investigated in the presence of a magnetic field parallel to a driving electric field. Calculations have been carried out using the energy-dependent relaxation time approximation in association with spin-flip scattering. As the magnitude of the magnetic field increases, the spin-polarized current alternates between the spin-up and spin-down states for the low spin-scattering system. This implies that the current polarization can be tuned by controlling the magnetic field strength, suggesting possible applications to spintronic devices. An experimental method for investigating alternative current polarization is also considered.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Sungjung Joo, Jinseo Lee, Taeyueb Kim, Kungwon Rhie, Jinki Hong, Kyung-Ho Shin, Ki Hyun Kim,