scholarly journals Resonant reflection of interacting electrons from an impurity in a quantum wire: Interplay of Zeeman and spin-orbit effects

2018 ◽  
Vol 98 (14) ◽  
Author(s):  
Rajesh K. Malla ◽  
M. E. Raikh
Keyword(s):  
Quantum Wire ◽  
Spin Orbit ◽  
Interacting Electrons ◽  
Resonant Reflection

Persistent Spin Current in a Quantum Wire with Weak Rashba Spin–Orbit Coupling

2006 ◽  
Vol 23 (11) ◽  
pp. 3065-3068 ◽  
Author(s):  
Wang Yi ◽  
Sheng Wei ◽  
Zhou Guang-Hui
Keyword(s):  
Quantum Wire ◽  
Spin Current ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Rashba Spin

scholarly journals Spin filtering in a nonuniform quantum wire with Rashba spin–orbit interaction

2009 ◽  
Vol 373 (48) ◽  
pp. 4489-4492 ◽  
Author(s):  
Xianbo Xiao ◽  
Xiaomao Li ◽  
Yuguang Chen
Keyword(s):  
Quantum Wire ◽  
Orbit Interaction ◽  
Spin Orbit ◽  
Spin Orbit Interaction ◽  
Rashba Spin ◽  
Spin Filtering

SPIN CURRENT INDUCED ELECTRIC FIELD IN A RASHBA QUANTUM WIRE

2010 ◽  
Vol 24 (07) ◽  
pp. 649-656
Author(s):  
XI FU ◽  
GUANGHUI ZHOU
Keyword(s):  
Electric Field ◽  
Current Density ◽  
Quantum Wire ◽  
Spin Current ◽  
Scattering Matrix ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Rashba Spin

We investigate theoretically the spin current and spin current induced electric field in a weak Rashba spin-orbit coupling quantum wire (QW) using a definition for spin current by means of scattering matrix. It is found that there exists two non-zero linear spin current density elements which have oscillation peaks at the center of QW and their strengths can be changed by the number of propagation modes and Rashba constant, respectively. Moreover, the spin current induced electric field has also been calculated and its strength is measurable with present technology with which can be used to detect spin current.

scholarly journals Observation of a one-dimensional spin–orbit gap in a quantum wire

2010 ◽  
Vol 6 (5) ◽  
pp. 336-339 ◽  
Author(s):  
C. H. L. Quay ◽  
T. L. Hughes ◽  
J. A. Sulpizio ◽  
L. N. Pfeiffer ◽  
K. W. Baldwin ◽  
...  
Keyword(s):  
Quantum Wire ◽  
Spin Orbit ◽  
One Dimensional

ELECTRONIC PROPERTIES OF A HYDROGENIC IMPURITY IN A QUANTUM WIRE WITH V-SHAPED CROSS-SECTION: SPIN-ORBIT COUPLING, RELATIVISTIC CORRECTION AND CONDUCTANCE

2013 ◽  
Vol 24 (07) ◽  
pp. 1350041 ◽  
Author(s):  
R. KHORDAD ◽  
H. BAHRAMIYAN
Keyword(s):  
Cross Section ◽  
Quantum Wire ◽  
Energy Levels ◽  
Relativistic Correction ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Hydrogenic Impurity ◽  
Mass Approximation ◽  
Shaped Cross Section

The effects of spin-orbit coupling (SOC) and relativistic correction (RC) on the energy levels of a hydrogenic impurity in a GaAs/Ga 1-x Al x As quantum wire are studied. The quantum wire has a V-shaped cross-section and the impurity located in its center. Our numerical calculations have done using a variational procedure within the effective mass approximation. Our results show that (i) the splitting due to the SOC decreases with increasing the wire width, (ii) the SOC and RC increase when the concentration increases, (iii) the SOC is zero for l = 0 (l is angular momentum) and nonzero for l ≠ 0, (iv) for a given wire width, the RC is different for l = 0 and l = 1 due to expectation values of [Formula: see text] and [Formula: see text] (r is distance between the electron and impurity). We also computed the conductance of the quantum wire with and without impurity.

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