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arXiv · 0902.2662

Localized magnetic states in Rashba dots

Mircea Crisan·David Sanchez·Rosa Lopez·Llorens Serra·Ioan Grosu
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Abstract

We study the formation of local moments in quantum dots arising in quasi-one dimensional electron wires due to localized spin-orbit (Rashba) interaction. Using an Anderson-like model to describe the occurrence of the magnetic moments in these Rashba dots, we calculate the local magnetization within the mean-field approximation. We find that the magnetization becomes a nontrivial function of the Rashba coupling strength. We discuss both the equilibrium and nonequilibrium cases. Interestingly, we obtain a magnetic phase which is stable at large bias due to the Rashba interaction.

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Mircea Crisan, David Sanchez, Rosa Lopez, Llorens Serra, Ioan Grosu. 2009-02-16. Localized magnetic states in Rashba dots. https://doi.org/10.1103/physrevb.79.125319

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