Kondo Resonance in the Presence of Spin-Polarized Currents

Details Kondo Resonance in the Presence of Spin-Polarized Currents Kondo Resonance in the Presence of Spin-Polarized Currents

2007-11-26

arxiv.org/abs/0711.4121v1

Physics

Condensed Matter

Strongly Correlated Electrons

4+ pages, 4 eps figures

Scientific paper

10.1103/PhysRevB.78.045305

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.

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