Moving beyond semiconductors for next-generation electric switches

Computers use switches to perform calculations. A complex film with "quantum wells"—regions that allow electron motion in only two dimensions—can be used to make efficient switches for high-speed computers. For the first ...

Switching superconductivity by light

A research team led by Prof. Hiroshi M. Yamamoto of the Institute for Molecular Science, National Institutes of Natural Sciences has developed a novel superconducting transistor which can be switched reversibly between ON ...

High-tech weapons sow fears of chip sabotage

As NATO countries weigh whether to arm Libya's rebels, military planners may give a thought to adding a remote "kill switch" to some weapons to keep them out of the wrong hands, experts say.

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