Spin-orbit coupling effect on the persistent currents in mesoscopic ring with an Anderson impurity

Abstract

Based on the finite $U$ slave boson method, we have investigated the effect of Rashba spin-orbit(SO) coupling on the persistent charge and spin currents in mesoscopic ring with an Anderson impurity. It is shown that the Kondo effect will decrease the magnitude of the persistent charge and spin currents in this side-coupled Anderson impurity case. In the presence of SO coupling, the persistent currents change drastically and oscillate with the strength of SO coupling. The SO coupling will suppress the Kondo effect and restore the abrupt jumps of the persistent currents. It is also found that a persistent spin current circulating the ring can exist even without the charge current in this system.

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Cited by in corpus (9)

• Enhancement of the Kondo effect through Rashba spin-orbit interactions
• The Two Dimensional Kondo Model with Rashba Spin-Orbit Coupling
• Determination of Rashba and Dresselhaus spin-orbit fields
• Chiral two-dimensional electron gas in a periodic magnetic field
• Anomalous magnetic response of a quasi-periodic mesoscopic ring in presence of Rashba and Dresselhaus spin-orbit interactions
• A proposal for the measurement of Rashba and Dresselhaus spin-orbit interaction strengths in a single sample
• Characteristics of persistent spin current components in a quasi-periodic Fibonacci ring with spin-orbit interactions: Prediction of spin-orbit coupling and on-site energy
• Spin interference and Fano effect in electron transport through a mesoscopic ring side-coupled with a quantum dot
• Persistent currents in mesoscopic spin-orbit coupled rings due to an applied Zeeman field