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Efficient Spin Filtering in a Disordered Semiconductor Superlattice in the Presence of Dresselhaus Spin-Orbit coupling
KNT University of Technology.
2008 (English)In: Physics Letters A, ISSN 0375-9601, E-ISSN 1873-2429, Vol. 372, no 11, p. 1926-1929Article in journal (Refereed) Published
Abstract [en]

The influence of the Dresselhaus spin–orbit coupling on spin polarization by tunneling through a disordered semiconductor superlattice was investigated. The Dresselhaus spin–orbit coupling causes the spin polarization of the electron due to transmission possibilities difference between spin up and spin down electrons. The electron tunneling through a zinc-blende semiconductor superlattice with InAs and GaAs layers and two variable distance InxGa(1−x)As impurity layers was studied. One hundred percent spin polarization was obtained by optimizing the distance between two impurity layers and impurity percent in disordered layers in the presence of Dresselhaus spin–orbit coupling. In addition, the electron transmission probability through the mentioned superlattice is too much near to one and an efficient spin filtering was recommended.

Place, publisher, year, edition, pages
Elsevier, 2008. Vol. 372, no 11, p. 1926-1929
Keywords [en]
Spintronics; Spin dynamics; Spin polarization; Dresselhaus spin–orbit coupling
National Category
Condensed Matter Physics
Research subject
Physics, Condensed Matter Physics
Identifiers
URN: urn:nbn:se:lnu:diva-31778DOI: 10.1016/j.physleta.2007.10.071OAI: oai:DiVA.org:lnu-31778DiVA, id: diva2:691913
Available from: 2014-01-29 Created: 2014-01-29 Last updated: 2017-12-06Bibliographically approved

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Mahani, Mohammad Reza

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