scholarly journals Spin polarization direction switch based on an asymmetrical quantum wire

2013 ◽  
Vol 377 (5) ◽  
pp. 412-416 ◽  
Author(s):  
Zhonghui Xu ◽  
Xianbo Xiao ◽  
Yuguang Chen
Keyword(s):  
Spin Polarization ◽  
Quantum Wire ◽  
Polarization Direction

scholarly journals Current-Induced Spin Photocurrent in GaAs at Room Temperature

Sensors ◽  
2022 ◽  
Vol 22 (1) ◽  
pp. 399
Author(s):  
Yang Zhang ◽  
Yu Liu ◽  
Xiao-Lan Xue ◽  
Xiao-Lin Zeng ◽  
Jing Wu ◽  
...  
Keyword(s):  
Electric Field ◽  
Spin Polarization ◽  
Applied Electric Field ◽  
Room Temperature ◽  
Polarization Direction ◽  
Applied Bias ◽  
Applied Bias Voltage ◽  
Sample Plane ◽  
Bulk Gaas ◽  
Circularly Polarized

Circularly polarized photocurrent, observed in p-doped bulk GaAs, varies nonlinearly with the applied bias voltage at room temperature. It has been explored that this phenomenon arises from the current-induced spin polarization in GaAs. In addition, we found that the current-induced spin polarization direction of p-doped bulk GaAs grown in the (001) direction lies in the sample plane and is perpendicular to the applied electric field, which is the same as that in GaAs quantum well. This research indicates that circularly polarized photocurrent is a new optical approach to investigate the current-induced spin polarization at room temperature.

Spin polarization in a model quantum wire with a cross-section

1999 ◽  
Vol 8 (3) ◽  
pp. 185-192
Author(s):  
Wang Chuan-kui ◽  
Wang Hong-song ◽  
Zhang Qing-gang
Keyword(s):  
Spin Polarization ◽  
Cross Section ◽  
Quantum Wire

scholarly journals Electrical control of carriers' spin orientation in the FeVTiSi Heusler alloy

2015 ◽  
Vol 3 (11) ◽  
pp. 2563-2567 ◽  
Author(s):  
Jiahui Zhang ◽  
Xingxing Li ◽  
Jinlong Yang
Keyword(s):  
Spin Polarization ◽  
Heusler Alloy ◽  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Polarization Direction ◽  
Spin Orientation ◽  
Electrical Control ◽  
Carrier Doping

Control of the spin-polarization direction by carrier doping in a quaternary Heusler alloy FeVTiSi with a bipolar magnetic semiconducting character and room temperature ferromagnetism.

Prediction of Spin-Polarization Effects in Quantum Wire Transport

1994 ◽  
Vol 33 (Part 1, No. 1B) ◽  
pp. 879-886 ◽  
Author(s):  
Gerhard Fasol ◽  
Hiroyuki Sakaki
Keyword(s):  
Spin Polarization ◽  
Quantum Wire ◽  
Polarization Effects ◽  
Spin Polarization Effects

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.

Detection of spin polarization in a quantum wire

2010 ◽  
Vol 42 (4) ◽  
pp. 809-812 ◽  
Author(s):  
Tomohiro Otsuka ◽  
Eisuke Abe ◽  
Yasuhiro Iye ◽  
Shingo Katsumoto
Keyword(s):  
Spin Polarization ◽  
Quantum Wire

scholarly journals Voltage-induced conversion of helical to uniform nuclear spin polarization in a quantum wire

2015 ◽  
Vol 91 (19) ◽  
Author(s):  
Viktoriia Kornich ◽  
Peter Stano ◽  
Alexander A. Zyuzin ◽  
Daniel Loss
Keyword(s):  
Spin Polarization ◽  
Nuclear Spin ◽  
Quantum Wire ◽  
Nuclear Spin Polarization

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
Sign in / Sign up

Export Citation Format

Share Document