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(a) Plot of −exp[−κ(π/l)2 t], i.e., T 2/[4ql 2/(Kπ3)], against t. (b)Logarithmic representation of the slope of the curve in (a).
(a) Ultrathin 200 μm long Pt wire connected to Ag probes, where the cold points are located at each end of the wire. At the cold points, no temperature change occurs when a current is supplied. (b) The wire was cut at the middle by supplying a constant direct current of 2.4 mA. The experiment was carried out in a SEM (c) I exp plotted against l and I Q as a function of lfor various values of B from 0.001 to 0.1.
f as a function of l −1 for various values of κ, from 10−3 to 10−5.
Two Ag NWs each attached to ultrathin Pt wires connected to Ag probes. The tips of the Ag NWs were brought into contact and welded together in a SEM by supplying a constant direct current. In this way, we obtained a Ag NW system in which the cold points were located at the ends of the Pt wires attached to the probes. By increasing the current, the Ag NW was cut under a current supply. Reprinted with permission from H. Tohmyoh and S. Fukui, J. Nanopart. Res. 14, 1116 (2012). Copyright 2012 Springer Science and Business Media.
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