Magnetization transfer by a quantum ring device

Michele Cini () and Stefano Bellucci ()

The European Physical Journal B: Condensed Matter and Complex Systems, 2014, vol. 87, issue 5, 1-7

Abstract: We show that a tight-binding model device consisting of a laterally connected ring at half filling in a tangent time-dependent magnetic field can in principle be designed to pump a purely spin current. The process exploits the spin-orbit interaction in the ring. This behavior is understood analytically and found to be robust with respect to temperature and small deviations from half filling. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2014

Keywords: Mesoscopic and Nanoscale Systems (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1140/epjb/e2014-50073-9

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