1. Electrically-manipulable spin filter based on a novel magnetic nanostructure
- Author
-
Xu-Hui Liu, Yan-Jun Gong, and Xiao-Wu Li
- Subjects
010302 applied physics ,Physics ,Condensed matter physics ,Spin polarization ,Spintronics ,Spin valve ,02 engineering and technology ,Zero field splitting ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,Magnetization ,Electric field ,0103 physical sciences ,Spinplasmonics ,Spin Hall effect ,Condensed Matter::Strongly Correlated Electrons ,0210 nano-technology - Abstract
In order to achieve a controllable spin-polarized source, we have applied a transverse electric field to a spin filter based on a novel magnetic nanostructure with zero average magnetic field. We have analytically calculated the transmission coefficient, conductance and spin polarization for electrons to transit the device in the presence of a transverse electric field. The results demonstrate that the transmission, the conductance and the spin polarization vary sensitively with the electric field. It is shown that the performance of the spin filter can be manipulated expediently by adjusting the transverse electric field. Thus, the spin filter can be utilized as an electrically controllable spin-polarized source for spintronics applications.
- Published
- 2016