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
Cini, M., Bellucci, S. (2014). Magnetzation transfer by a quantum ring device. THE EUROPEAN PHYSICAL JOURNAL. B, CONDENSED MATTER PHYSICS, 87, 106 [10.1140/epjb/e2014-50073-9].
Magnetzation transfer by a quantum ring device
CINI, MICHELE;
2014-01-01
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 fillingFile in questo prodotto:
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