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
1999 ◽  
Vol 8 (3) ◽  
pp. 185-192
Author(s):  
Wang Chuan-kui ◽  
Wang Hong-song ◽  
Zhang Qing-gang

1994 ◽  
Vol 33 (Part 1, No. 1B) ◽  
pp. 879-886 ◽  
Author(s):  
Gerhard Fasol ◽  
Hiroyuki Sakaki

2011 ◽  
Vol 25 (07) ◽  
pp. 487-496
Author(s):  
XI FU ◽  
ZESHUN CHEN ◽  
FENG ZHONG ◽  
YONGHONG KONG

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.


2015 ◽  
Vol 91 (19) ◽  
Author(s):  
Viktoriia Kornich ◽  
Peter Stano ◽  
Alexander A. Zyuzin ◽  
Daniel Loss

2010 ◽  
Vol 405 (17) ◽  
pp. 3581-3584
Author(s):  
Hang Li ◽  
Yuan Ping Chen ◽  
Yue E Xie ◽  
Jian Xin Zhong

2013 ◽  
Vol 377 (5) ◽  
pp. 412-416 ◽  
Author(s):  
Zhonghui Xu ◽  
Xianbo Xiao ◽  
Yuguang Chen

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