Thermoelectric effects of an Aharonov-Bohm interferometer with an embedded quantum dot in the Kondo regime

Abstract

Thermoelectric effects are studied in an Aharonov-Bohm (AB) interferometer with an embedded quantum dot in the Kondo regime. The AB flux-dependent transmission probability has an asymmetrical shape arising from the Fano interference between the direct tunneling path and the Kondo-resonant tunneling path through a quantum dot. The sign and magnitude of thermopower can be modulated by the AB flux and the direct tunneling amplitude. In addition, the thermopower is anomalously enhanced by the Kondo correlation in the quantum dot near the Kondo temperature ($T_K$). The Kondo correlation in the quantum dot also leads to crossover behavior in diagonal transport coefficients as a function of temperature. The amplitude of an AB oscillation in electric and thermal conductances is small at temperatures far above $T_K$, but becomes enhanced as the system is cooled below $T_K$. The AB oscillation is strong in the thermopower and Lorenz number within the crossover region near the Kondo temperature.

arXiv comment16 pages, 10 figures

References in corpus (17)

• Kondo Physics in a Single Electron Transistor
• A Tunable Kondo Effect in Quantum Dots
• Low Temperature Transport through a Quantum Dot: The Anderson Model out of Equilibrium
• Kondo physics in carbon nanotubes
• Tuning of the Fano Effect through a Quantum Dot in an Aharonov-Bohm Interferometer
• The Anderson Model out of Equilibrium: Non-Crossing-Approximation Approach to Transport through a Quantum Dot
• Fano Resonances in Electronic Transport through a Single Electron Transistor
• Kondo Correlations and the Fano Effect in Closed AB-Interferometers
• Fano and Kondo resonance in electronic current through nanodevices
• Phase Evolution in a Kondo Correlated System
• Transmission Phase of a Quantum Dot with Kondo Correlation Near the Unitary Limit
• Thermopower of Aharonov-Bohm Interferometer with a Quantum Dot
• Suppression of current in transport through parallel double quantum dots
• Nonlinear Conductance for the Two Channel Anderson Model
• Aharonov-Bohm-Type Oscillations of Thermopower in a Quantum Dot Ring Geometry
• Theory of One-Channel vs. Multi-Channel Kondo Effects for Ce${}^{3+}$ Impurities
• Calculations of the Knight Shift Anomalies in Heavy Electron Materials

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