Bias-tunable electron transport in a nanostructure with the periodic magnetic barriers

Using the transfer matrix method, the transmission probability, the spin polarization and the conductance of the ballistic electron are studied in detail in a nanostructure with the periodic applied bias and magnetic barriers. We find that these observable quantities sensitively depend on the number...

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Bibliographic Details
Published in:Physica. E, Low-dimensional systems & nanostructures Low-dimensional systems & nanostructures, 2009, Vol.41 (3), p.518-520
Main Authors: Lu, Jian-Duo, Li, Yun-Bao, Wang, Yu-Hua, Hou, Yang-Lai
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electronic transport in condensed matter
Exact sciences and technology
Magnetic nanostructure
Physics
Spin polarization
Spin polarized transport
Spintronics
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Summary:Using the transfer matrix method, the transmission probability, the spin polarization and the conductance of the ballistic electron are studied in detail in a nanostructure with the periodic applied bias and magnetic barriers. We find that these observable quantities sensitively depend on the number of the periodic magnetic–electric barriers. With the number of the periods increasing, the resonance peaks shift towards right and the number of the resonance peaks is increasing as well as the spin polarization being enhanced. These interesting properties may be helpful for making the bias-tunable spin filter.
ISSN:1386-9477
1873-1759
DOI:10.1016/j.physe.2008.01.019