scholarly journals Charge and spin current in a quasi-one-dimensional quantum wire with spin-orbit coupling

2014 ◽  
Vol 89 (3) ◽  
Author(s):  
K. E. Nagaev ◽  
A. S. Goremykina
Keyword(s):  
Quantum Wire ◽  
Spin Current ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
One Dimensional

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

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 PERSISTENT SPIN CURRENT IN SPIN-ORBIT COUPLING SYSTEMS IN THE ABSENCE OF AN EXTERNAL MAGNETIC FIELD

2007 ◽  
Vol 21 (21) ◽  
pp. 3687-3695 ◽  
Author(s):  
QING-FENG SUN ◽  
X. C. XIE
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Quantum Wire ◽  
Spin Current ◽  
Orbit Coupling ◽  
Zero Magnetic Field ◽  
Spin Accumulation ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Two Dimensional

The spin-orbit coupling systems with a zero magnetic field are studied under the equilibrium situation, i.e., without a voltage bias. A persistent spin current is predicted to exist under most circumstances, although the persistent charge current and the spin accumulation are identically zero. In particular, a two-dimensional quantum wire is investigated in detail. Surprisingly, a persistent spin current is found to flow along the confined direction, due to the spin precession accompanied by the particle motion. This provides an interesting example of constant spin flowing without inducing a spin accumulation, contrary to common intuition.

Spin current and its heat effect in a multichannel quantum wire with Rashba spin—orbit coupling

2011 ◽  
Vol 20 (7) ◽  
pp. 077302
Author(s):  
Zhan-Feng Song ◽  
Ya-Dong Wang ◽  
Hui-Bin Shao ◽  
Zhi-Gang Sun
Keyword(s):  
Quantum Wire ◽  
Heat Effect ◽  
Spin Current ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Rashba Spin

Persistent spin current in a quantum wire with weak Dresselhaus spin–orbit coupling

2007 ◽  
Vol 16 (2) ◽  
pp. 533-536 ◽  
Author(s):  
Sheng Wei ◽  
Wang Yi ◽  
Zhou Guang-Hui
Keyword(s):  
Quantum Wire ◽  
Spin Current ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit

scholarly journals Influence of Rashba spin-orbit coupling on the 0- π transition and Kondo temperature in one-dimensional superconductors

2019 ◽  
Vol 100 (23) ◽  
Author(s):  
Ignacio J. Hamad ◽  
Franco T. Lisandrini ◽  
Claudio J. Gazza ◽  
Alejandro M. Lobos
Keyword(s):  
Orbit Coupling ◽  
Kondo Temperature ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
One Dimensional ◽  
Rashba Spin
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