Figure 2

(a) Current as a function of applied bias for a thin film of Sb2Te3 nanoplates. The measurement is made in vacuum. (b) Current as a function of temperature for a thin film of Sb2Te3 nanoplates. (c) SEM image of a single Sb2Te3 nanoplate connected to two Al electrodes. (d) Transfer curve (conductance as a function of gate bias) for a single Sb2Te3 nanoplate.