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Chirality in Coulomb-blockaded quantum dots

David Sánchez and Markus Büttiker
Phys. Rev. B 72, 201308(R) – Published 30 November 2005

Abstract

We investigate the two-terminal nonlinear conductance of a Coulomb-blockaded quantum dot attached to chiral edge states. Reversal of the applied magnetic field inverts the system chirality and leads to a different polarization charge. As a result, the current-voltage characteristic is not an even function of the magnetic field. We show that the corresponding magnetic-field asymmetry arises from single-charge effects and vanishes in the limit of high temperature.

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  • Received 13 October 2005

DOI:https://doi.org/10.1103/PhysRevB.72.201308

©2005 American Physical Society

Authors & Affiliations

David Sánchez1,2 and Markus Büttiker2

  • 1Departament de Física, Universitat de les Illes Balears, E-07122 Palma de Mallorca, Spain
  • 2Département de Physique Théorique, Université de Genève, CH-1211 Genève 4, Switzerland

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Issue

Vol. 72, Iss. 20 — 15 November 2005

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