Schematic experimental setup. The Al nanowire is formed inside a tungsten heater coil, fed by a current source (I). The external piezo positions inertially one of the Al electrodes glued to the mobile, while the other Al electrode is glued to the internal piezo whose position is controlled by a voltage ramp.
Costa-Krämer et al. Nanoscale Research Letters 2012 7:115 doi:10.1186/1556-276X-7-115