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Chirality in Coulomb-blockaded quantum dots

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Sanchez, David A.
Published in Physical Review. B, Condensed Matter. 2005, vol. 72, p. 201308
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.
Keywords Quantum dotsIV characteristicMagnetic field effectsCoulomb blockadeNon linear effectElectrical conductivityChirality
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SANCHEZ, David A., BUTTIKER, Markus. Chirality in Coulomb-blockaded quantum dots. In: Physical Review. B, Condensed Matter, 2005, vol. 72, p. 201308. doi: 10.1103/PhysRevB.72.201308 https://archive-ouverte.unige.ch/unige:4199

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Deposited on : 2009-11-30

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