Non-Fermi-Liquid in a modified single electron transistor
Yuval Oreg, David Goldhaber-Gordon
Abstract
At low temperatures, a system built from a small droplet of electrons and a larger, but still finite, droplet may display non-Fermi-liquid behavior. Stabilization of a multi-channel Kondo fixed point requires fine control of the electrochemical potential in each droplet. The desired fine control can be achieved by adjusting voltages on nearby gate electrodes. We study the conditions for obtaining this type of non-Fermi-liquid behavior and discuss the experimentally-observable consequences.
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