Weak-localization and rectification current in non-diffusive quantum wires

Details Weak-localization and rectification current in non-diffusive quantum wires Weak-localization and rectification current in non-diffusive quantum wires

2001-12-17

arxiv.org/abs/cond-mat/0112303v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

changed title, added more detail, to appear in J. Phys.: Condens. Matter

Scientific paper

10.1088/0953-8984/14/34/311

We show that electron transport in disordered quantum wires can be described by a modified Cooperon equation, which coincides in form with the Dirac equation for the massive fermions in a 1+1 dimensional system. In this new formalism, we calculate the DC electric current induced by electromagnetic fields in quasi-one-dimensional rings. This current changes sign, from diamagnetic to paramagnetic, depending on the amplitude and frequency of the time-dependent external electromagnetic field.

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