Mesoscopic features in the transport properties of a Kondo-correlated quantum dot in a magnetic field

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We study the transport behavior induced by a small bias voltage through a quantum dot connected to one-channel finite-size wires. We describe the quantum dot using the Hubbard-Anderson impurity model and we obtain solutions by means of a quantum Monte Carlo method. We investigate the effect of a mag...

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Detalles Bibliográficos
Autores principales: Camjayi, A., Arrachea, L.
Formato: JOUR
Materias:
Kondo
Monte Carlo
quantum dot
transport
Impurity model
Kondo regime
Mesoscopic oscillations
Quantum Monte Carlo methods
Transport behavior
Magnetic fields
Monte Carlo methods
Superconducting materials
Semiconductor quantum dots
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_09538984_v26_n3_p_Camjayi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:We study the transport behavior induced by a small bias voltage through a quantum dot connected to one-channel finite-size wires. We describe the quantum dot using the Hubbard-Anderson impurity model and we obtain solutions by means of a quantum Monte Carlo method. We investigate the effect of a magnetic field applied at the quantum dot in the Kondo regime. We identify mesoscopic oscillations in the conductance, which are introduced by the magnetic field. This behavior is analogous to that observed as a function of the temperature. © 2014 IOP Publishing Ltd.

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