Spin-Polarized Transport through a Quantum Dot Coupled to Ferromagnetic Leads and a Mesoscopic Ring

被引：0
|
作者：
Huang Rui [1 ]
Wu Shao-Quan [2 ]
机构：
[1] SW Petr Univ, Coll Sci, Nanchong 637001, Peoples R China
[2] Sichuan Normal Univ, Coll Phys & Elect Engn, Chengdu 610068, Peoples R China
来源：
COMMUNICATIONS IN THEORETICAL PHYSICS | 2010年 / 53卷 / 02期
关键词：
Kondo effect; spin-polarized transport; transmission probability;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Using an equation of motion technique, we investigate the spin-polarized transport through a quantum dot coupled to ferromagnetic leads and a mesoscopic ring by the Anderson Hamiltonian. We analyze the transmission probabilty of this system in both the equilibrium and nonequilibrium cases, and our results reveal that the transport properties show some noticeable characteristics depending upon the spin-polarized strength p, the magnetic flux Phi and the number of lattice sites N-R in the mesoscopic ring. These effects might have some potential applications in spintronics.
引用
收藏
页码：355 / 360
页数：6
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