scholarly journals Spin transport of electrons through quantum wires with a spatially modulated Rashba spin-orbit interaction

2004 ◽  
Vol 69 (3) ◽  
Author(s):  
X. F. Wang
Keyword(s):  
Spin Transport ◽  
Quantum Wires ◽  
Orbit Interaction ◽  
Spin Orbit ◽  
Spin Orbit Interaction ◽  
Rashba Spin

scholarly journals CURVATURE-INDUCED RASHBA SPIN–ORBIT INTERACTION IN STRAIN-DRIVEN NANOSTRUCTURES

SPIN ◽  
2013 ◽  
Vol 03 (03) ◽  
pp. 1340002 ◽  
Author(s):  
PAOLA GENTILE ◽  
MARIO CUOCO ◽  
CARMINE ORTIX
Keyword(s):  
Schrödinger Equation ◽  
Schrodinger Equation ◽  
Degrees Of Freedom ◽  
Quantum Wires ◽  
Orbit Interaction ◽  
Spin Orbit ◽  
Spin Orbit Interaction ◽  
One Dimensional ◽  
Rashba Spin ◽  
Low Dimensional

We derive the effective dimensionally reduced Schrödinger equation with spin–orbit interaction (SOI) in low-dimensional electronic strain-driven nanostructures. By employing a method of adiabatic separation among fast normal quantum degrees of freedom and slow tangential quantum degrees of freedom, we show the emergence of a strain-induced Rashba-like SOI. By applying this analysis to one-dimensional (1D) curved quantum wires we demonstrate that the curvature-induced Rashba SOI leads to enhanced spin–orbit effects.

COMBINED EFFECTS OF RASHBA SPIN-ORBIT INTERACTION STRENGTH AND ITS EXTENDED LENGTH IN QUANTUM WIRES

2006 ◽  
Vol 20 (06) ◽  
pp. 715-724
Author(s):  
HUI SU ◽  
BEN-YUAN GU
Keyword(s):  
Electron Spin ◽  
Quantum Wires ◽  
Interaction Strength ◽  
Orbit Interaction ◽  
Spin Precession ◽  
Combined Effects ◽  
Spin Orbit ◽  
Spin Orbit Interaction ◽  
Rashba Spin ◽  
Relative Conductance

The combined effects of Rashba spin-orbit interaction (SOI) strength and the length of SOI excited region, which can be controlled by the external gate voltage deposited on the heterostructure, and on the electron spin precession in quasi-one-dimensional quantum wires are investigated by evaluating the relative conductance change, i.e. the ratio of difference of the conductances of the spin-up and spin-down polarized electrons to the total conductance. It is found that for proper wire width, electron spin precession can be smoothly achieved by co-adjusting the SOI strength and the length of SOI excited region. However, for wide quantum wire and strong SOI, the electron spin precession is significantly reduced due to the appearance of inter-subband mixing.

Spin transport properties in a double quantum ring with Rashba spin-orbit interaction

2013 ◽  
Vol 113 (1) ◽  
pp. 014303 ◽  
Author(s):  
Azadeh S. Naeimi ◽  
Leila Eslami ◽  
Mahdi Esmaeilzadeh ◽  
Mohammad Reza Abolhassani
Keyword(s):  
Transport Properties ◽  
Spin Transport ◽  
Orbit Interaction ◽  
Double Quantum ◽  
Quantum Ring ◽  
Spin Orbit ◽  
Spin Orbit Interaction ◽  
Rashba Spin

scholarly journals Spin densities in parabolic quantum wires with Rashba spin-orbit interaction

2006 ◽  
Vol 3 (12) ◽  
pp. 4317-4321 ◽  
Author(s):  
Sigurdur I. Erlingsson ◽  
J. Carlos Egues ◽  
Daniel Loss
Keyword(s):  
Quantum Wires ◽  
Orbit Interaction ◽  
Spin Orbit ◽  
Spin Orbit Interaction ◽  
Rashba Spin ◽  
Spin Densities
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