scholarly journals Spin transfer in a ferromagnet–quantum dot and tunnel-barrier-coupled Aharonov–Bohm ring system with Rashba spin–orbit interactions

2010 ◽  
Vol 22 (18) ◽  
pp. 186004 ◽  
Author(s):  
Xi Chen ◽  
Qing-Rong Zheng ◽  
Gang Su
NANO ◽  
2007 ◽  
Vol 02 (06) ◽  
pp. 389-392 ◽  
Author(s):  
WALID A. ZEIN ◽  
ADEL H. PHILLIPS ◽  
OMAR A. OMAR

We investigate the quantum size effect in the phase coherent mesoscopic ring. A quantum dot is embedded in one arm and it is connected to one lead via tunnel barrier. Both Aharonov–Casher and Aharonov–Bohm effects are studied. A spin-dependent conductance has been deduced and it depends on the intrinsic parameters. Our results show that the strength of spin-orbit coupling depends on the size of the present device. This investigation is valuable for fabricating such spintronics devices.


2006 ◽  
Vol 74 (16) ◽  
Author(s):  
Hongki Min ◽  
J. E. Hill ◽  
N. A. Sinitsyn ◽  
B. R. Sahu ◽  
Leonard Kleinman ◽  
...  

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