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.
@article{arxiv.0902.2662,
title = {Localized magnetic states in Rashba dots},
author = {Mircea Crisan and David Sanchez and Rosa Lopez and Llorens Serra and Ioan Grosu},
journal= {arXiv preprint arXiv:0902.2662},
year = {2009}
}