ITP OpenIR  > 理论物理所科研产出  > SCI论文
Jia, CL; Wang, SJ; Luo, HG; An, JH; Jia, CL , Lanzhou Univ, Dept Modern Phys, Lanzhou 730000, Peoples R China.
Electron spin transport through an Aharonov-Bohm ring - a spin switch
Source PublicationJOURNAL OF PHYSICS-CONDENSED MATTER
KeywordBerry Phase Persistent Currents Quantum Oscillations Mesoscopic Systems Pancharatnam Phase Orbit Interaction Magnetic-field Anandan Phase Conductance
AbstractElectron spin transport through an Aharonov-Bohm ring driven by time-dependent inhomogeneous magnetic fields is treated. The system possesses an su(2)(l) x su(2)(s) dynamical symmetry in both orbital angular momentum space and spin space, and is thus proved to be integrable according to algebraic dynamics. Based on the analytical solutions, the relevant physical quantities such as electric current, spin current, magnetization and conductance are calculated. It is found that for a magnetic field with pi/2 twist angle, the direction of spin-polarization will be reversed at zero magnetic flux. In the resonant rotating magnetic field, the spin transmission is oscillating with time t, and can reach unity, so that a complete spin flip can also be induced. The results obtained may be of practical significance for the design of nano-electromagnetic spin devices, such as a spin switch, in a controllable way.
2004
ISSN0953-8984
Volume16Issue:12Pages:2043-2052
Subject AreaPhysics
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/14106
Collection理论物理所科研产出_SCI论文
Corresponding AuthorJia, CL , Lanzhou Univ, Dept Modern Phys, Lanzhou 730000, Peoples R China.
Recommended Citation
GB/T 7714
Jia, CL,Wang, SJ,Luo, HG,et al. Electron spin transport through an Aharonov-Bohm ring - a spin switch[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2004,16(12):2043-2052.
APA Jia, CL,Wang, SJ,Luo, HG,An, JH,&Jia, CL , Lanzhou Univ, Dept Modern Phys, Lanzhou 730000, Peoples R China..(2004).Electron spin transport through an Aharonov-Bohm ring - a spin switch.JOURNAL OF PHYSICS-CONDENSED MATTER,16(12),2043-2052.
MLA Jia, CL,et al."Electron spin transport through an Aharonov-Bohm ring - a spin switch".JOURNAL OF PHYSICS-CONDENSED MATTER 16.12(2004):2043-2052.
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