Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jmmm.2012.03.011
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dc.titleSpin-polarized current generated by magneto-electrical gating
dc.contributor.authorMa, M.
dc.contributor.authorJalil, M.B.A.
dc.contributor.authorTan, S.G.
dc.date.accessioned2014-06-17T03:06:50Z
dc.date.available2014-06-17T03:06:50Z
dc.date.issued2012-08
dc.identifier.citationMa, M., Jalil, M.B.A., Tan, S.G. (2012-08). Spin-polarized current generated by magneto-electrical gating. Journal of Magnetism and Magnetic Materials 324 (15) : 2392-2396. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jmmm.2012.03.011
dc.identifier.issn03048853
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/57495
dc.description.abstractWe theoretically study spin-polarized current through a single electron tunneling transistor (SETT), in which a quantum dot (QD) is coupled to non-magnetic source and drain electrodes via tunnel junctions, and gated by a ferromagnetic (FM) electrode. The I-V characteristics of the device are investigated for both spin and charge currents, based on the non-equilibrium Greens function formalism. The FM electrode generates a magnetic field, which causes a Zeeman spin-splitting of the energy levels in the QD. By tuning the size of the Zeeman splitting and the source-drain bias, a fully spin-polarized current is generated. Additionally, by modulating the electrical gate bias, one can effect a complete switch of the polarization of the tunneling current from spin-up to spin-down current, or vice versa. © 2012 Elsevier B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.jmmm.2012.03.011
dc.sourceScopus
dc.subjectNon-equilibrium Greens function
dc.subjectSingle electron tunneling
dc.subjectSpin polarized current
dc.typeArticle
dc.contributor.departmentELECTRICAL & COMPUTER ENGINEERING
dc.description.doi10.1016/j.jmmm.2012.03.011
dc.description.sourcetitleJournal of Magnetism and Magnetic Materials
dc.description.volume324
dc.description.issue15
dc.description.page2392-2396
dc.description.codenJMMMD
dc.identifier.isiut000302784700012
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