Figure 1.

Diagram of nanoporous Bi samples and image of the narrow metal strips. (a) Processing diagram of nanoporous Bi samples, consisting of four-point-probe electrodes for measuring the thermal conductivity. (b) Optical image of the narrow metal strips (Ti/Au = 10/300 nm) representing the four-point electrodes acting as a heater wire and probe pads.

Kim et al. Nanoscale Research Letters 2013 8:371   doi:10.1186/1556-276X-8-371
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