Spin transport properties in a non-uniform quantum wire modulated by both Rashba and Dresselhaus spin–orbit couplings

2018 ◽  
Vol 382 (39) ◽  
pp. 2868-2875 ◽  
Author(s):  
Zhonghui Xu ◽  
Weishuai Lv ◽  
Mansoor B.A. Jalil ◽  
Jinsong Huang ◽  
Yangwan Zhong ◽  
...  
Keyword(s):  
Transport Properties ◽  
Quantum Wire ◽  
Spin Transport ◽  
Spin Orbit ◽  
Uniform Quantum

SPIN TRANSPORT FOR A QUANTUM WIRE WITH WEAK DRESSELHAUS SPIN-ORBIT COUPLING

2011 ◽  
Vol 25 (07) ◽  
pp. 487-496
Author(s):  
XI FU ◽  
ZESHUN CHEN ◽  
FENG ZHONG ◽  
YONGHONG KONG
Keyword(s):  
Spin Polarization ◽  
Quantum Wire ◽  
Spin Transport ◽  
Scattering Matrix ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Wall Potential ◽  
Electron Transport Properties ◽  
Scattering Matrix Method

We investigate theoretically the electron transport properties of a quantum wire (QW) non-adiabatically connected to two normal leads with weak Dresselhaus spin-orbit coupling (DSOC). Using the scattering matrix method and Landauer–Büttiker formula within the effective free-electron approximation, we have calculated the spin-dependent conductances G↑/↓ and spin polarization Pz of a hard-wall potential confined QW. It is demonstrated that regardless of the existence of DSOC G↑/↓ and Pz present oscillation structures near the subband edges of QW, and the number of quantized conductance plateaus is determined by the number of propagation modes in two leads. Moreover, the DSOC induces splitting of spin-up and spin-down conductance plateaus as well as the existence of spin polarization (Pz ≠ 0), and the enhancement of Dresselhaus strength destroys the conductance plateaus for the wide QW case. The above results indicate that the spin-dependent conductances and Pz are strongly dependent on the Dresselhaus strength which is the physical basis for spin transistor.

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

Variation of spin-orbit torque and spin transport properties by V alloying in β-W-based magnetic heterostructures

2022 ◽  
pp. 114486
Author(s):  
Gyu Won Kim ◽  
Jeong Kyu Lee ◽  
Taehyun Kim ◽  
Min Hyeok Lee ◽  
In Ho Cha ◽  
...  
Keyword(s):  
Transport Properties ◽  
Spin Transport ◽  
Spin Orbit ◽  
Magnetic Heterostructures

Spin transport properties in silicon in a nonlocal geometry

2011 ◽  
Vol 83 (24) ◽  
Author(s):  
Masashi Shiraishi ◽  
Yoshiya Honda ◽  
Eiji Shikoh ◽  
Yoshishige Suzuki ◽  
Teruya Shinjo ◽  
...  
Keyword(s):  
Transport Properties ◽  
Spin Transport

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
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