Kondo Resonance in the Presence of Spin-Polarized Currents

Abstract

We propose an improved method of the equation of motion approach to study the Kondo problem in spin-dependent non-equilibrium conditions. We find that the previously introduced additional renormalization for non-equilibrium Kondo effects is not required when we use a proper decoupling scheme. Our improved formulation is then applied to address the spin-split Kondo peaks when a spin current injects into a Kondo system.

4+ pages, 4 eps figures

References in corpus (5)

• Kondo effect in quantum dots coupled to ferromagnetic leads
• NRG study of the Kondo effect in the presence of itinerant-electron ferromagnetism
• Nonequilibrium Kondo Effect in a Quantum Dot Coupled to Ferromagnetic Leads
• Kondo effect with non collinear polarized leads: a numerical renormalization group analysis
• Quantum dot with ferromagnetic leads: a density-matrix renormalization group study

Cited by in corpus (2)

• Thermo-spin effects in a quantum dot connected to ferromagnetic leads
• Dimensionality effects in the LDOS of ferromagnetic hosts probed via STM: spin-polarized quantum beats and spin filtering