Spin-dependent transport of electrons in a shuttle structure

被引:0
|
作者
Gorelik, L. Y. [1 ]
Kulinich, S. I. [1 ,2 ]
Shekhter, R. I. [1 ]
Jonson, M. [1 ]
Vinokur, V. M. [3 ]
机构
[1] Chalmers, Dept Appl Phys, SE-41296 Gothenburg, Sweden
[2] B. I. Verkin Inst Low Temp Phys & Engn, Kharkov 61103, Ukraine
[3] Argonne Natl Lab, Div Sci Mat, Argonne, IL 60439 USA
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中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
We consider "shuttling" of spin-polarized electrons between two magnetic electrodes (half-metals) by a movable dot with a single electronic level. If the magnetization of the electrodes is antiparallel we show that the transmittance of the system can be changed by orders of magnitude if an external magnetic field, perpendicular to the polarization of the electronic spins, is applied. A giant magnetotransmittance effect can be achieved for weak external fields of order 1 divided by 10 Oe.
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页码:307 / +
页数:2
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