September/October 2007
Silicon-Based Spintronics
First of its kind computing prototype.
By Prachi Patel
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Spin chip: An array of one-¬millimeter-square silicon spintronic devices sits in a chip carrier.
Credit: John Cox, University of Delaware |
Today's computers work by moving and storing electronic charge. But manipulating another property of electrons, their quantum-mechanical "spin," would be faster and take far less energy. Researchers have been working on "spintronics" for years, and now electrical engineers at the University of Delaware and at Cambridge NanoTech in Cambridge, MA, have made the first prototype device that measures spin in silicon.
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Massachusetts Institute of Technology