Low-density spin-polarized transport in two-dimensional semiconductor structures: Temperature-dependent magnetoresistance of Si MOSFETs in an in-plane applied magnetic field

2005 ◽  
Vol 72 (20) ◽  
Author(s):  
S. Das Sarma ◽  
E. H. Hwang
Keyword(s):  
Magnetic Field ◽  
Applied Magnetic Field ◽  
Low Density ◽  
Two Dimensional ◽  
Temperature Dependent ◽  
Semiconductor Structures ◽  
Spin Polarized ◽  
Polarized Transport ◽  
Spin Polarized Transport

Spin Polarized Transport through Structures Consist of the Ferromagnetic Semiconductor in Presence of a Inhomogeneous Magnetic Field

2011 ◽  
Vol 194-196 ◽  
pp. 679-682
Author(s):  
Zahra Bamshad
Keyword(s):  
Magnetic Field ◽  
Spin Polarization ◽  
Fermi Energy ◽  
Magnetic Tunnel Junction ◽  
Inhomogeneous Magnetic Field ◽  
Spin Polarized ◽  
Polarized Transport ◽  
Dimensional Electron Gas ◽  
Spin Electronic ◽  
Spin Polarized Transport

The spin-polarized transport is investigated in a magnetic tunnel junction which consists of two ferromagnetic electrodes separated by a magnetic barrier and a nonmagnetic metallic spacer placed in distance above the two dimensional electron gas (2DEG) in presence of an inhomogeneous external modulated magnetic field and a perpendicular wave vector dependent effective potential. Based on the transfer matrix method and the nearly-free-electron approximation the dependence of the conductance and spin polarization on the Fermi energy of the electrons are studied theoretically the. strong oscillations with large amplitude investigated in spin polarization in terms of the Fermi energy due to the inhomogeneous magnetic field. The conductance in terms of the Fermi energy shows no oscillation in low energy but has a strong pick in middle region. this results may be useful for the development of spin electronic devices based on coherent transport, or may be used as a tunable spin-filter.

Magnetic field effect on spin-polarized transport in asymmetric multibarrier based on InAs/GaAs/GaSb systems

2020 ◽  
Vol 597 ◽  
pp. 412403 ◽  
Author(s):  
Hassen Dakhlaoui ◽  
Mouna Nefzi ◽  
Najla S. Al-Shameri ◽  
Alanoud Al Suwaidan ◽  
Hadeel Elmobkey ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Field Effect ◽  
Magnetic Field Effect ◽  
Spin Polarized ◽  
Polarized Transport ◽  
Spin Polarized Transport
Sign in / Sign up

Export Citation Format

Share Document