Conductance for a Quantum Wire with Weak Rashba Spin-Orbit Coupling

2005 ◽  
Vol 22 (12) ◽  
pp. 3159-3162 ◽  
Author(s):  
Liu Gen-Hua ◽  
Zhou Guang-Hui
Keyword(s):  
Quantum Wire ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Rashba Spin

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.

Spin polarization in a double bend quantum wire with Rashba spin-orbit coupling

2010 ◽  
Vol 405 (17) ◽  
pp. 3581-3584
Author(s):  
Hang Li ◽  
Yuan Ping Chen ◽  
Yue E Xie ◽  
Jian Xin Zhong
Keyword(s):  
Spin Polarization ◽  
Quantum Wire ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Rashba Spin

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

scholarly journals Spin Accumulation in a Quantum Wire with Rashba Spin-Orbit Coupling

2008 ◽  
Vol 2008 ◽  
pp. 1-5 ◽  
Author(s):  
Xi Fu ◽  
Wenhu Liao ◽  
Guanghui Zhou
Keyword(s):  
Quantum Wire ◽  
Scattering Matrix ◽  
Orbit Coupling ◽  
Spin Accumulation ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Numerical Examples ◽  
Rashba Spin ◽  
Out Of Plane ◽  
Two Peaks

We investigate theoretically the spin accumulation in a Rashba spin-orbit coupling quantum wire. Using the scattering matrix approach within the effective free-electron approximation, we have demonstrated the three components of spin polarization. It is found that by a few numerical examples, the two peaks for the out-of-plane spin accumulation〈Sz〉shift to the edges of quantum wire with the increase of propagation modes. The period of intrinsic oscillations〈Sx/y〉inversely proportions to the Rashba SOC strength. This effect may be used to differentiate the intrinsic spin accumulation from the extrinsic one.

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