Loading…

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...

Full description

Saved in:
Bibliographic Details
Published in:Physics letters. A 2014-04, Vol.378 (22-23), p.1642-1646
Main Authors: Ma, Wen-Yue, Zhang, Gui-Lin, Chen, Sai-Yan, Jiang, Ya-Qing, Li, Shuai
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
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.
ISSN:0375-9601
1873-2429
DOI:10.1016/j.physleta.2014.04.016