1206.1150 (Tatiana Krishtop et al.)

Temperature-dependent quantum electron transport in 2D point contact    [PDF]

Tatiana Krishtop, Kirill Nagaev

We consider a transmission of electrons through a two-dimensional ballistic point contact in the low-conductance regime below the 0.7-anomaly. The scattering of electrons by Friedel oscillations of charge density results in a contribution to the conductance proportional to the temperature. The sign of this linear term depends on the range of the electron-electron interaction and appears to be negative for the relevant experimental parameters.

View original: http://arxiv.org/abs/1206.1150