Figure 1.

The current–voltage measurements at various temperatures and the longitudinal resistance. (a) Four-terminal current–voltage measurements V(I) at various temperatures T. (b) Longitudinal resistance Rxx as a function of T. The inset shows the sample structure.

Lo et al. Nanoscale Research Letters 2012 7:640   doi:10.1186/1556-276X-7-640
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