Spin diffusion equations for systems with Rashba spin-orbit interaction in an electric field

2006 ◽  
Vol 73 (3) ◽  
Author(s):  
O. Bleibaum
Keyword(s):  
Electric Field ◽  
Spin Diffusion ◽  
Orbit Interaction ◽  
Diffusion Equations ◽  
Spin Orbit ◽  
Spin Orbit Interaction ◽  
Rashba Spin

Effects of Spin Orbit Interaction on Optical Properties for Quantum Dot and Quantum Wire

2017 ◽  
pp. 237-260
Author(s):  
Manoj Kumar ◽  
Pradip Kumar Jha ◽  
Aranya B. Bhattacherjee
Keyword(s):  
Magnetic Field ◽  
Refractive Index ◽  
Optical Absorption ◽  
Electric Field ◽  
Quantum Wire ◽  
Orbit Interaction ◽  
Spin Orbit ◽  
Spin Orbit Interaction ◽  
Rashba Spin ◽  
Index Changes

Here, the influence of external magnetic field on the optical absorption and refractive index changes for a parabolically confined quantum dot in the presence of Rashba spin orbit interaction have been investigated. The results are presented as a function of quantum confinement potential, magnetic field, Rashba spin orbit interaction strength and photon energy. Our results indicate the important influence of magnetic field on the peak positions of absorption coefficient and refractive index changes. For Quantum Wire, the energy dispersion relations are studied of the spin split subbands subjected to external transverse electric and magnetic fields in the presence of Rashba spin orbit interaction. For an infinite superlattice wire, it is found that the energy gaps between different subbands are shifted due to Rashba spin orbit interaction and external electric field. Here we have also investigated the influence of external electric field and magnetic field on the optical absorption of a parabolic confinement wire.

SPIN-DEPENDENT SHOT NOISE IN APERIODIC SEMICONDUCTOR MULTILAYERS HETEROSTRUCTURES

2012 ◽  
Vol 26 (30) ◽  
pp. 1250200
Author(s):  
AILI QIN ◽  
DE LIU
Keyword(s):  
Electric Field ◽  
Shot Noise ◽  
Detection System ◽  
Electronic Devices ◽  
Fano Factor ◽  
Orbit Interaction ◽  
Spin Orbit ◽  
Spin Orbit Interaction ◽  
External Bias ◽  
Rashba Spin

We investigated the spin-dependent shot noise in aperiodic semiconductor multilayers heterostructures in the presence of the Rashba spin-orbit interaction and an electric field. The results indicate that the shot noise and Fano factor are strongly spin-dependent and can be greatly modulated not only by the external bias voltage and Rashba spin-orbit interaction but also by the thicknesses of block A and B. Our investigations may provide away to design the detection system electronic devices.

Sign in / Sign up

Export Citation Format

Share Document