Magnetic-field symmetries of mesoscopic nonlinear conductance
arXiv:cond-mat/0701024 · doi:10.1016/j.physe.2007.05.007
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.
arXiv comment9 pages, 4 figures
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- 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
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- Quantum transport phenomena induced by time-dependent fields