Équipe de Recherche en Physique de l'Information Quantique


Abstract = {We present a theory of spin-selective Aharonov-Bohm oscillations in a lateral triple quantum dot. We show that to understand the Aharonov-Bohm (AB) effect in an interacting electron system within a triple quantum dot molecule (TQD) where the dots lie in a ring configuration requires one to not only consider electron charge but also spin. Using a Hubbard model supported by microscopic calculations we show that, by localizing a single electron spin in one of the dots, the current through the TQD molecule depends not only on the flux but also on the relative orientation of the spin of the incoming and localized electrons. AB oscillations are predicted only for the spin singlet electron complex resulting in a magnetic field tunable "spin valve." {\copyright} 2008 The American Physical Society.},
Art_Number = {226810},
Author = {Delgado, F. and Shim, Y.-P. and Korkusinski, M. and Gaudreau, L. and Studenikin, S.A. and Sachrajda, A.S. and Hawrylak, P.},
Document_Type = {Article},
Journal = {Physical Review Letters},
Number = {22},
Source = {Scopus},
Title = {Spin-selective aharonov-bohm oscillations in a lateral triple quantum dot},
Url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-57149113724&partnerID=40&md5=c9f05fdac83303db895ef96258ca74e5},
Volume = {101},
Year = {2008},
Bdsk-Url-1 = {http://www.scopus.com/inward/record.url?eid=2-s2.0-57149113724&partnerID=40&md5=c9f05fdac83303db895ef96258ca74e5}}