arXiv 1306.64912013-06cond-mat.mes-hall

Magnetic field symmetries of nonlinear transport with elastic and inelastic scattering

Salil Bedkihal, Malay Bandyopadhyay, Dvira Segal

发表信息：: Physical Review B 88 155407 (2013)
DOI：: 10.1103/PhysRevB.88.155407

英文摘要：

We study nonlinear electronic transport symmetries in Aharonov-Bohm interferometers subjected to inelastic scattering effects and show that odd (even) conductance terms are even (odd) in the magnetic field when the junction is (left-right) spatially symmetric. This observation does not hold when an asymmetry is introduced, as we show numerically, but odd conductance terms only manifest a weak breakdown of the magnetic field symmetry. Under elastic dephasing effects, the Onsager-Casimir symmetry is maintained beyond linear response and under spatial asymmetries.

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