Spin selective Aharonov-Bohm oscillations in a lateral triple quantum dot - Condensed Matter > Strongly Correlated ElectronsReportar como inadecuado




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Abstract: We present a theory for spin selective Aharonov-Bohm oscillations in alateral triple quantum dot. We show that to understand the Aharonov-Bohm ABeffect in an interacting electron system within a triple quantum dot moleculeTQD where the dots lie in a ring configuration requires one to not onlyconsider electron charge but also spin. Using a Hubbard model supported bymicroscopic calculations we show that, by localizing a single electron spin inone of the dots, the current through the TQD molecule depends not only on theflux but also on the relative orientation of the spin of the incoming andlocalized electrons. AB oscillations are predicted only for the spin singletelectron complex resulting in a magnetic field tunable -spin valve-.



Autor: F. Delgado, Y.-P. Shim, M. Korkusinski, L. Gaudreau, S. A. Studenikin, A. S. Sachrajda, P. Hawrylak

Fuente: https://arxiv.org/







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