Virginia TechYang, Z.Chshiev, MairbekZwolak, MichaelChen, Y. C.Di Ventra, Massimiliano2014-05-072014-05-072005-01Yang, Z., Chshiev, M., Zwolak, M., Chen, Y. C., & Di Ventra, M. (2005). Role of heating and current-induced forces in the stability of atomic wires. Physical Review B, 71(4), 041402.1098-0121http://hdl.handle.net/10919/47883We investigate the role of local heating and forces on ions in the stability of current-carrying aluminum wires. For a given bias, we find that heating increases with wire length due to a redshift of the frequency spectrum. Nevertheless, the local temperature of the wire is relatively low for a wide range of biases provided good thermal contact exists between the wire and the bulk electrodes. On the contrary, current-induced forces increase substantially as a function of bias and reach bond-breaking values at about 1 V. These results suggest that local heating promotes low-bias instabilities if dissipation into the bulk electrodes is not efficient, while current-induced forces are mainly responsible for the wire breakup at large biases. We compare these results to experimental observations.4 p.application/pdfen-USIn CopyrightNanoscale conductorsTight-bindingContactsNanocontactsDependenceResistanceTransportPhysics, condensed matterArticle - Refereedhttps://doi.org/10.1103/PhysRevB.71.041402