Nano-junctions, containing atomic-scale gold contacts between strongly disordered leads, exhibit different transport properties at room temperature and at low temperature. At room temperature, the nano-junctions exhibit conductance quantization effects. At low temperatures, the contacts exhibit Coulomb-Blockade. We show that the differences between the room-temperature and low temperature properties arise from the localization of electronic states in the leads. The charging energy and capacitance of the nano-junctions exhibit strong fluctuations with applied magnetic field at low temperature, as predicted theoretically.
@article{arxiv.cond-mat/0402057,
title = {Localization and Capacitance Fluctuations in Disordered Au Nano-junctions},
author = {M. Bowman and A. Anaya and A. L. Korotkov and D. Davidovic},
journal= {arXiv preprint arXiv:cond-mat/0402057},
year = {2016}
}