Anomalous behavior of epitaxial indium nano-contacts on cadmium-zinc-telluride

A Ruzin, O Sinkevich, G Cohen-Taguri… - Applied Physics …, 2012 - pubs.aip.org
In this work, experimental characterization results of indium nano-contacts are presented.
The indium nano-contacts are epitaxially grown on a two-dimensional surface of high-
resistivity, n-type Cd 0.9 Zn 0.1 Te in ultra-high vacuum. The scaling effect in these contacts
is systematic, but not linear. It is shown that the contacts exhibit a profoundly asymmetric
behavior. It is argued that the “rectifying” behavior of these contacts is due to tunneling and
that the tunneling does not necessarily imply Schottky nature.
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