Transport through a double-quantum-dot system with noncollinearly polarized leads

DOI zum Zitieren dieses Dokuments:: 10.5283/epub.9393

Hornberger, R. P. ; Koller, S. ; Begemann, G. ; Donarini, Andrea ; Grifoni, Milena

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Veröffentlichungsdatum dieses Volltextes: 18 Sep 2009 08:02

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Zusammenfassung

We investigate linear and nonlinear transport in a double quantum dot system weakly coupled to spin-polarized leads. In the linear regime, the conductance as well as the nonequilibrium spin accumulation are evaluated in analytic form. The conductance as a function of the gate voltage exhibits four peaks of different heights with mirror symmetry with respect to the charge neutrality point. As the ...