Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/55420
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dc.titleControllable spin-filtering and magnetoconductance in a novel hybrid FM/2DEG/FM structure
dc.contributor.authorJiang, Y.
dc.contributor.authorJalil, M.B.A.
dc.date.accessioned2014-06-17T02:42:52Z
dc.date.available2014-06-17T02:42:52Z
dc.date.issued2003-11-30
dc.identifier.citationJiang, Y.,Jalil, M.B.A. (2003-11-30). Controllable spin-filtering and magnetoconductance in a novel hybrid FM/2DEG/FM structure. Modern Physics Letters B 17 (27-28) : 1437-1444. ScholarBank@NUS Repository.
dc.identifier.issn02179849
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/55420
dc.description.abstractSpin-dependent ballistic transport is studied for a two-dimensional electron gas (2DEG) heterostructure, sandwiched between two ferromagnetic metal (FM) layers. The device exhibits a strong spin-filtering behavior when the magnetization directions of the FM layers are anti-parallel to one another. Additionally, a pronounced magnetoconductance (MC) effect is predicted when the relative magnetization direction of the FM layers is changed, e.g. by applying an external magnetic field sweep. Both the spin-filter and spin-valve (SV) functions can be tuned externally by adjusting the applied voltage and the fringe field strength from the FM layers. Compared to conventional all-metal SVs, the proposed 2DEG-based SV potentially has the advantages of a higher MC ratio (of as high as 90%), external tenability, and less susceptibility to interfacial imperfections.
dc.sourceScopus
dc.subjectHybrid structure
dc.subjectMagnetoconductance
dc.subjectSpin-injection
dc.typeArticle
dc.contributor.departmentELECTRICAL & COMPUTER ENGINEERING
dc.description.sourcetitleModern Physics Letters B
dc.description.volume17
dc.description.issue27-28
dc.description.page1437-1444
dc.description.codenMPLBE
dc.identifier.isiutNOT_IN_WOS
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