Gate-Voltage Studies of Discrete Electronic States in Al Nanoparticles

Abstract

We have investigated the spectrum of discrete electronic states in single, nm-scale Al particles incorporated into new tunneling transistors, complete with a gate electrode. The addition of the gate has allowed (a) measurements of the electronic spectra for different numbers of electrons in the same particle, (b) greatly improved resolution and qualitatively new results for spectra within superconducting particles, and (c) detailed studies of the gate-voltage dependence of the resonance level widths, which have directly demonstrated the effects of non-equilibrium excitations.

arXiv comment4 pages, 7 figures

References in corpus (1)

• Chaos, interactions, and nonequilibrium effects in the tunneling resonance spectra of small metallic particles

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