Kondo resonance in the presence of spin-polarized currents

Yunong Qi; Jian Xin Zhu; Shufeng Zhang; C. S. Ting

doi:10.1103/PhysRevB.78.045305

Kondo resonance in the presence of spin-polarized currents

Yunong Qi, Jian Xin Zhu, Shufeng Zhang, C. S. Ting

Physics

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

We propose an improved method of the equation of motion approach to study the Kondo problem in spin-dependent nonequilibrium conditions. We find that the previously introduced additional renormalization for nonequilibrium 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.

Original language	English (US)
Article number	045305
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	78
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.78.045305
State	Published - Jul 10 2008

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.78.045305

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title = "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 nonequilibrium conditions. We find that the previously introduced additional renormalization for nonequilibrium 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.",

author = "Yunong Qi and Zhu, {Jian Xin} and Shufeng Zhang and Ting, {C. S.}",

year = "2008",

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T1 - Kondo resonance in the presence of spin-polarized currents

AU - Qi, Yunong

AU - Zhu, Jian Xin

AU - Zhang, Shufeng

AU - Ting, C. S.

PY - 2008/7/10

Y1 - 2008/7/10

N2 - We propose an improved method of the equation of motion approach to study the Kondo problem in spin-dependent nonequilibrium conditions. We find that the previously introduced additional renormalization for nonequilibrium 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.

AB - We propose an improved method of the equation of motion approach to study the Kondo problem in spin-dependent nonequilibrium conditions. We find that the previously introduced additional renormalization for nonequilibrium 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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U2 - 10.1103/PhysRevB.78.045305

DO - 10.1103/PhysRevB.78.045305

M3 - Article

AN - SCOPUS:47349087353

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VL - 78

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

IS - 4

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ER -

Kondo resonance in the presence of spin-polarized currents

Abstract

ASJC Scopus subject areas

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