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Scientific article
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English

Magnetic-field symmetries of mesoscopic non-linear conductance

Publication date2007
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 dot
  • Mesoscopic fluctuations
  • Non-linear transport
  • Magnetic field
Citation (ISO format)
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. doi: 10.1016/j.physe.2007.05.007
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Identifiers
ISSN of the journal1386-9477
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