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Nature 453, 42-43 (1 May 2008) | doi:10.1038/453042a; Published online 30 April 2008
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- Bayer Schering Pharma AG Berlin
- Berlin 13353 Germany
Senior Scientist, Bioinformatics and Protein Design
- Novo Nordisk Foundation Center for Protein Research, University of Copenhagen
- Copenhagen 2200 Denmark
Electronics: The fourth element
Abstract
Almost four decades since its existence was first proposed, a fourth basic circuit element joins the canonical three. The 'memristor' might herald a step-change in the march towards ever more powerful circuitry.
We learn at school that there are three fundamental two-terminal elements used for circuit building: resistors, capacitors and inductors. These are 'passive' elements, capable of dissipating or storing energy — but not, as active elements are, of generating it.
- James M. Tour and Tao He are in the Departments of Chemistry, Computer Science, Mechanical Engineering and Materials Science, and the Smalley Institute for Nanoscale Science and Technology, Rice University, Houston, Texas 77005, USA.
Email: tour@rice.edu
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