VOLTAGE-TUNABLE SPIN POLARIZATION OF TWO-DIMENSIONAL ELECTRON GAS IN FERROMAGNETIC/SEMICONDUCTOR HYBRID NANOSYSTEM
The spin-dependent electron transport in a two-dimensional electron gas (2DEG) modulated by a stripe of magnetized ferromagnetic metal under an applied voltage was investigated theoretically. It is revealed that highly spin-polarized current can be achieved in this kind of nanosystems. It is also shown that the spin polarity of the electron transport can be switched by adjusting the applied voltage to the stripe in the device. These interesting properties may provide an alternative scheme to spin polarize electrons into semiconductors, and this device may be used as a voltage-tunable spin filter.
Year of publication: |
2006
|
---|---|
Authors: | LU, MAOWANG |
Published in: |
Surface Review and Letters (SRL). - World Scientific Publishing Co. Pte. Ltd., ISSN 1793-6667. - Vol. 13.2006, 05, p. 599-605
|
Publisher: |
World Scientific Publishing Co. Pte. Ltd. |
Subject: | Spintronics | spin polarization | spin filtering | magnetic nanosystem | 73.40.Gk | 75.75.+a | 72.25.-b | 73.23.-b |
Saved in:
Online Resource
Saved in favorites
Similar items by subject
-
ELECTRON-SPIN POLARIZATION IN BOTH MAGNETICALLY AND ELECTRICALLY-MODULATED NANOSTRUCTURES
LU, MAO-WANG, (2005)
-
DIPOLE-EXCHANGE SPIN WAVES IN FERROMAGNETIC NANOSTRUCTURES WITH SPHERICAL GEOMETRIES
NGUYEN, HOA T., (2008)
-
MAGNETOSTATIC MODES IN NANOMETER-SIZED FERROMAGNETIC AND ANTIFERROMAGNETIC TUBES
DAS, T. K., (2007)
- More ...
Similar items by person