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Manipulating spin spatial splitter by δ-doping in hybrid magnetic–electric-barrier nanostructure
Based on a composite magnetic–electric-barrier nanostructure, a spin spatial splitter was proposed recently. In order to control the spin-polarized lateral displacement (LD) of electrons, a tunable δ-potential is introduced into this device by the atomic layer doping technique. Theoretical analysis...
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Published in: | Physics letters. A 2014-04, Vol.378 (22-23), p.1642-1646 |
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Main Authors: | , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Based on a composite magnetic–electric-barrier nanostructure, a spin spatial splitter was proposed recently. In order to control the spin-polarized lateral displacement (LD) of electrons, a tunable δ-potential is introduced into this device by the atomic layer doping technique. Theoretical analysis together with numerical simulation shows that both magnitude and sign of spin-polarized LD change dramatically with the height and/or the position of the δ-doping. Consequently, a structurally tunable spin spatial splitter can be achieved for spintronics applications.
•Influence of the δ-doping on a spin spatial splitter is theoretically explored.•The degree of spin-polarized lateral displacement of electrons depends strongly on the δ-doping.•A controllable spin spatial splitter can be achieved for spintronics. |
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ISSN: | 0375-9601 1873-2429 |
DOI: | 10.1016/j.physleta.2014.04.016 |