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Science 13 January 2006:
Vol. 311. no. 5758, pp. 205 - 208
DOI: 10.1126/science.1120506
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Reports

Majority Logic Gate for Magnetic Quantum-Dot Cellular Automata

A. Imre,1* G. Csaba,2 L. Ji,1 A. Orlov,1 G. H. Bernstein,1 W. Porod1

We describe the operation of, and demonstrate logic functionality in, networks of physically coupled, nanometer-scale magnets designed for digital computation in magnetic quantum-dot cellular automata (MQCA) systems. MQCA offer low power dissipation and high integration density of functional elements and operate at room temperature. The basic MQCA logic gate, that is, the three-input majority logic gate, is demonstrated.

1 Center for Nano Science and Technology, Department of Electrical Engineering, University of Notre Dame, Notre Dame, IN 46556, USA.
2 Institute for Nanoelectronics, Technical University of Munich, Arcisstrasse 21, D-80333 Munich, Germany.

* To whom correspondence should be addressed. E-mail: aimre{at}nd.edu

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Spin Coupling in Engineered Atomic Structures.
C. F. Hirjibehedin, C. P. Lutz, and A. J. Heinrich (2006)
Science 312, 1021-1024
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Science. ISSN 0036-8075 (print), 1095-9203 (online)