Magnetic-field symmetries of mesoscopic non-linear conductance

2007/01/01 by M. L. Polianski, M. Büttiker, M. Buttiker
Mathematics · Physics and Astronomy · #Asymmetry #Condensed matter physics #Conductance #Coulomb #Coulomb blockade #Current (fluid) #Electron #Geometry #Homogeneous space #Magnetic field #Magnetic flux #Mathematics #Mesoscopic physics #Physics #Quantum and electron transport phenomena #Quantum chaos and dynamical systems #Quantum mechanics #Semiconductor Quantum Structures and Devices #Voltage #cond-mat.mes-hall #cond-mat.mtrl-sci

paper · pdf · doi:10.1016/j.physe.2007.05.007

published as Physica E 40, 67 (2007) · 9 pages, 4 figures

arxiv created 2007/01/01 · openalex publication_date 2007/05/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

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.

Citations

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