We investigate theoretically the interplay of current-induced forces (CIF), Joule heating, and heat transport inside a current-carrying nano-conductor. We find that the CIF, due to the electron-phonon coherence, can control the spatial heat dissipation in the conductor. This yields a significant asymmetric concentration of excess heating (hot-spot) even for a symmetric conductor. When coupled to the electrode phonons, CIF drive different phonon heat flux into the two electrodes. First-principles calculations on realistic biased nano-junctions illustrate the importance of the effect.
Cite
@article{arxiv.1409.4047,
title = {Current-induced forces and hot-spots in biased nano-junctions},
author = {Jing-Tao Lü and Rasmus B. Christensen and Jian-Sheng Wang and Per Hedegård and Mads Brandbyge},
journal= {arXiv preprint arXiv:1409.4047},
year = {2015}
}