ptb
Latest
Computer components may one day recycle their own wasted heat
Imagine a computer that isn't just designed to "deal" with the heat produced by its components, but one that actually uses that wasted energy to power some of its high-tech internals. That's the potential of a new discovery out of the Physical and Technical Institute (PTB) of Braunschweig, Germany. Researchers discovered what they're calling tunnel magneto thermoelectric voltage, essentially that by heating one side of a magnetic tunnel structure (the types of switches found in magnetic RAM and in the heads of hard drives) they can control the flow of electricity across its poles. The switches would still need to be triggered by matching the polarity on either side of the insulator and magnet sandwich, but heating one pole would create an electrical potential and would consume some of the energy that otherwise might get dispersed through a heatsink. We're still years away from seeing this technology in any functioning products and, honestly, we're not entirely sure we understand how exactly it would work, but it sounds like just the sort of potential-packing innovation that our (rather toasty) laps desperately need.
Scientists use single electron pump to take subatomic particles for a spin
German and Latvian researchers at the Physikalisch-Technische Bundesanstalt (PTB) have successfully demonstrated how a single electron pump can be used to give the elementary particles a predefined "spin." Aptly titled spintronics, the technology aims to manipulate a quantum-level property of electrons similar to the north-south axes in magnets. The results would be faster chips that require less energy than current electronics, which deal in electron movement. Of course, all of this is still a ways off from consumer use, so don't expect to be overclocking your electron pumps anytime soon. Science-minded readers would be advised to hit up the read link to peruse the research paper.[Via Nanowerk and Spintronics-Info]
