News of the WeekSPINTRONICS

Magnetic Gate Opens New Computing Path

Science  14 Jun 2002:
Vol. 296, Issue 5575, pp. 1948
DOI: 10.1126/science.296.5575.1948a

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Summary

A tiny device that answers "no" when it's told "yes" and vice versa could mark the first step toward microchips that calculate magnetically, a team of physicists reports. The "NOT gate," described on page 2003, uses a trick of geometry to manipulate magnetism as conventional devices do electric charge.

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