Spin Polarization Through Resonant Tunneling in a Magnetic Double-Barrier and Double-Well Quantum Structure
GUO Yong, QIN Jian-Hua, CHEN Xin-Yi, GU Bing-Lin
Department of Physics, Tsinghua University, Beijing 100084
Spin Polarization Through Resonant Tunneling in a Magnetic Double-Barrier and Double-Well Quantum Structure
GUO Yong;QIN Jian-Hua;CHEN Xin-Yi;GU Bing-Lin
Department of Physics, Tsinghua University, Beijing 100084
关键词 ：
72.25.-b ,
73.23.-b ,
73.40.Gk ,
72.10.-d
Abstract ： Recent studies have indicated that spin polarization of the conductance shows strong oscillation and zero average for electrons resonant tunneling through a magnetic double-barrier and double-well quantum structure. Our studies indicate that strong oscillation of the polarization of the conductance is not physically intrinsic but inaccurate due to problems of numeration and insufficient numerical accuracy. We also indicate that its average of the spin polarization is not zero. The reasonable explanation is presented in details.
Key words ：
72.25.-b
73.23.-b
73.40.Gk
72.10.-d
出版日期: 2003-07-01
:
72.25.-b
(Spin polarized transport)
73.23.-b
(Electronic transport in mesoscopic systems)
73.40.Gk
(Tunneling)
72.10.-d
(Theory of electronic transport; scattering mechanisms)
引用本文:
GUO Yong;QIN Jian-Hua;CHEN Xin-Yi;GU Bing-Lin. Spin Polarization Through Resonant Tunneling in a Magnetic Double-Barrier and Double-Well Quantum Structure[J]. 中国物理快报, 2003, 20(7): 1124-1127.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2003/V20/I7/1124
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2003, Vol. 20 
