Magnetic-field symmetries of mesoscopic nonlinear conductance

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.

9 pages, 4 figures

References in corpus (3)

• Towards a semiclassical justification of the `effective random matrix theory' for transport through ballistic chaotic quantum dots
• Nonlinear magnetotransport in interacting chiral nanotubes
• Charge fluctuations in open chaotic cavities

Cited by in corpus (5)

• Rectification and nonlinear transport in chaotic dots and rings
• Gap theory of rectification in ballistic three-terminal conductors
• Magnetic-field asymmetry of electron wave packet transmission in bent channels capacitively coupled to a metal gate
• Violation of Onsager symmetry for a ballistic channel Coulomb coupled to a quantum ring
• Quantum transport phenomena induced by time-dependent fields