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Experimental demonstration of electron switching in a quantum-dot cellular automata (QCA) cell

✍ Scribed by Islamshah Amlani; A.O. Orlov; G.L. Snider; C.S. Lent; W. Porod; G.H. Bernstein

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 79 KB
Volume: 25
Category: Article
ISSN: 0749-6036
DOI: 10.1006/spmi.1998.0647

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✦ Synopsis

We present an experimental demonstration of electron switching in a quantum-dot cellular automata (QCA) cell. The four-dot QCA cell is constructed of two capacitively-coupled double-dots. Polarization switching of the cell is accomplished by applying biases to the gates of the input double-dot and is experimentally verified from the conductances of electrometers capacitively coupled to the output double-dot. Theoretical simulations of the QCA switching show excellent agreement with experiment. We include preliminary results of a modified cell design that show improved performance.

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