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Spintronics? The future of the microchip?

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http://www.sciam.com/article.cfm?art...2&chanID=sa003

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One promise of spintronics is to slash waste heat in computers. In normal electronics, electric fields propel electrons, which shed heat in the process. In contrast, spins can move around on their own or under a magnetic field without producing much heat. But researchers had only shown they could control electron spin reliably in more niche varieties of semiconductor such as gallium arsenide, which is used in cell phones.

In the new device, Appelbaum and co-workers inject electrons from a layer of aluminum through a thin layer of ferromagnet (a permanent magnet) and into a pure silicon crystal. Aluminum has a 50–50 mix of spin up and spin down electrons-—the two possible orientations. The ferromagnet, however, blocks electrons of one spin while letting the others flow into the silicon
In the 10 years it'll take to reach the public domain we might be seeing several varieties of chips competing to be the inheiritor to the standard silicone chip
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Ereshkigal
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post #2 of 3
neato
    
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post #3 of 3
Another stepping stone to quantum computers.
Once again...
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