Journal
PHYSICAL REVIEW B
Volume 79, Issue 12, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.79.125319
Keywords
Anderson model; exchange interactions (electron); local moments; magnetic impurities; magnetisation; quantum dots; spin-orbit interactions
Funding
- Ministerio de Ciencia e Innovacion [FIS2008-00781]
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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-type 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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