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Author Aharony, Amnon ♦ Entin-Wohlman, Ora ♦ Tokura, Yasuhiro ♦ Katsumoto, Shingo
Source arXiv.org
Content type Text
File Format PDF
Date of Submission 2008-05-23
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Natural sciences & mathematics ♦ Physics
Subject Keyword Condensed Matter - Mesoscale and Nanoscale Physics ♦ physics:cond-mat
Abstract For a linear chain of diamond-like elements, we show that the Rashba spin-orbit interaction (which can be tuned by a perpendicular gate voltage) and the Aharonov-Bohm flux (due to a perpendicular magnetic field) can combine to select only one propagating ballistic mode, for which the electronic spins are fully polarized along a direction that can be tuned by the electric and magnetic fields and by the electron energy. All the other modes are evanescent. For a wide range of parameters, this chain can serve as a spin filter.
Description Reference: Phys. Rev. B78, 125328 (2008)
Educational Use Research
Learning Resource Type Article


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