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Magnetic-field symmetries of mesoscopic non-linear conductance

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Polianski, Mikhail L.
Published in Physica E: Low-dimensional Systems and Nanostructures. 2007, vol. 40, p. 67-75
Abstract We examine contributions to the dc-current of mesoscopic samples which are non-linear in applied voltage. In the presence of a magnetic field, the current can be decomposed into components which are odd (antisymmetric) and even (symmetric) under flux reversal. For a two-terminal chaotic cavity, these components turn out to be very sensitive to the strength of the Coulomb interaction and the asymmetry of the contact conductances. For both two- and multi-terminal quantum dots we discuss correlations of current non-linearity in voltage measured at different magnetic fields and temperatures.
Keywords Quantum dotMesoscopic fluctuationsNon-linear transportMagnetic field
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POLIANSKI, Mikhail L., BUTTIKER, Markus. Magnetic-field symmetries of mesoscopic non-linear conductance. In: Physica E: Low-dimensional Systems and Nanostructures, 2007, vol. 40, p. 67-75. https://archive-ouverte.unige.ch/unige:4203

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Deposited on : 2009-11-30

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