Non-equilibrium Kondo effect in double quantum dot

M. N. Kiselev; K. A. Kikoin; L. W. Molenkamp

doi:10.1016/j.jmmm.2004.01.009

Non-equilibrium Kondo effect in double quantum dot

M. N. Kiselev, K. A. Kikoin, L. W. Molenkamp

Department of Physics

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

2 Scopus citations

Abstract

We investigate theoretically a non-equilibrium transport through a double quantum dot (DQD) in a parallel geometry. It is shown that the resonance Kondo tunneling through a parallel DQD with even occupation and singlet ground state may arise at a strong bias, which compensates the energy of singlet/triplet excitation. Using the renormalization group technique we derive scaling equations and calculate the differential conductance as a function of an auxiliary DC-bias for parallel DQD being in a regime described by SO(4) symmetry.

Original language	English
Pages (from-to)	1676-1677
Number of pages	2
Journal	Journal of Magnetism and Magnetic Materials
Volume	272-276
Issue number	III
DOIs	https://doi.org/10.1016/j.jmmm.2004.01.009
State	Published - 1 Jan 2004

Keywords

Kondo effect
Nonequilibrium
Quantum dots

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/j.jmmm.2004.01.009

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abstract = "We investigate theoretically a non-equilibrium transport through a double quantum dot (DQD) in a parallel geometry. It is shown that the resonance Kondo tunneling through a parallel DQD with even occupation and singlet ground state may arise at a strong bias, which compensates the energy of singlet/triplet excitation. Using the renormalization group technique we derive scaling equations and calculate the differential conductance as a function of an auxiliary DC-bias for parallel DQD being in a regime described by SO(4) symmetry.",

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AU - Kiselev, M. N.

AU - Kikoin, K. A.

AU - Molenkamp, L. W.

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Y1 - 2004/1/1

N2 - We investigate theoretically a non-equilibrium transport through a double quantum dot (DQD) in a parallel geometry. It is shown that the resonance Kondo tunneling through a parallel DQD with even occupation and singlet ground state may arise at a strong bias, which compensates the energy of singlet/triplet excitation. Using the renormalization group technique we derive scaling equations and calculate the differential conductance as a function of an auxiliary DC-bias for parallel DQD being in a regime described by SO(4) symmetry.

AB - We investigate theoretically a non-equilibrium transport through a double quantum dot (DQD) in a parallel geometry. It is shown that the resonance Kondo tunneling through a parallel DQD with even occupation and singlet ground state may arise at a strong bias, which compensates the energy of singlet/triplet excitation. Using the renormalization group technique we derive scaling equations and calculate the differential conductance as a function of an auxiliary DC-bias for parallel DQD being in a regime described by SO(4) symmetry.

KW - Kondo effect

KW - Nonequilibrium

KW - Quantum dots

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U2 - 10.1016/j.jmmm.2004.01.009

DO - 10.1016/j.jmmm.2004.01.009

M3 - Article

AN - SCOPUS:23044510109

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JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - III

ER -

Non-equilibrium Kondo effect in double quantum dot

Abstract

Keywords

ASJC Scopus subject areas

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