Kotelnikov Institute for Radioengineering and Electronics, Mokhovaya 11-7, Moscow 125009, Russia.
J Phys Condens Matter. 2013 Feb 6;25(5):055301. doi: 10.1088/0953-8984/25/5/055301. Epub 2013 Jan 3.
We consider the transmission of electrons through a two-dimensional ballistic point contact in the low-conductance regime near the pinch-off region. 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.
我们研究了在接近截止区域的低电导区域中，通过二维弹道点接触的电子传输。电子通过电荷密度的 Friedel 振荡散射导致电导的线性项，其比例与温度成正比。这个线性项的符号取决于电子-电子相互作用的范围，对于相关的实验参数，它似乎是负的。
