Figure 5

Data of a 25 nm thick cluster-assembled film. (a) the temperature coefficient of resistivity (TCR) for the curve measured upon the application of 20 V. (b) Resistance as a function of the inverse of the temperature, both for cooling (red circles and blue circles respectively) and heating (cross) cycles, in logarithmic scale. An Arrhenius-like trend is recognizable only for temperatures below 40 K.