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1996
Journal Article
Titel
Field enhanced blockade of the confined energy levels in nanometer scale pillar arrays
Alternative
Feldverstärkte Blockade der Energieniveaus von Nanometer großen Säulenfeldern
Abstract
We report observations of dramatic hysteretic switching behavior in nanometer scale pillar arrays. Using a new technique, we fabricate arrays of closely packed pillars 20-50 nm in diameter from a GaAs/AlAs resonant tunneling diode hetcrostructure. The array resistance switches between two stable states with a current peak to valley ratio of 500:1. Scanning tunneling microscope characterization of individual pillars suggests that the pillars trap charge to block the flow of current through the quantum confined states.
Author(s)