Tag Archives: spintronic

‘Unprecedented’ 3D magnetic interactions could change computing

Posted on by
The field of spintronics, or spin electronics, uses an electron's spin and its magnetic movement to encode instructions and other data. It's sometimes seen as an alternative to electronics, which relies on the electron's charge to encode data. While...

IBM creates consistent electron spin inside semiconductors, takes spintronics one twirl closer

Posted on by

IBM creates consistent electron spin inside of a chip, takes spintronics one twirl closer

A fundamental challenge of developing spintronics, or computing where the rotation of electrons carries instructions and other data rather than the charge, has been getting the electrons to spin for long enough to shuttle data to its destination in the first place. IBM and ETH Zurich claim to be the first achieving that feat by getting the electrons to dance to the same tune. Basing a semiconductor material on gallium arsenide and bringing the temperature to an extremely low -387F, the research duo have created a persistent spin helix that keeps the spin going for the 1.1 nanoseconds it would take a normal 1GHz processor to run through its full cycle, or 30 times longer than before. As impressive as it can be to stretch atomic physics that far, just remember that the theory is some distance from practice: unless you're really keen on running a computer at temperatures just a few hops away from absolute zero, there's work to be done on producing transistors (let alone processors) that safely run in the climate of the family den. Assuming that's within the realm of possibility, though, we could eventually see computers that wring much more performance per watt out of one of the most basic elements of nature.

Continue reading IBM creates consistent electron spin inside semiconductors, takes spintronics one twirl closer

Filed under:

IBM creates consistent electron spin inside semiconductors, takes spintronics one twirl closer originally appeared on Engadget on Mon, 13 Aug 2012 14:41:00 EDT. Please see our terms for use of feeds.

Permalink TG Daily  |  sourceNature  | Email this | Comments

Utah researchers create ‘Spintronic’ LED, claim it’s ‘brighter, cheaper’ and eco-friendly

Posted on by

Utah researchers create 'Spintronic' LED, claims its 'brighter, cheaper' and ecofriendlySpintronics? Not exactly a new term 'round these parts, but University of Utah physicists are applying it in a unique way that may eventually make TVs look even sharper than they do today. The entity is trumpeting a new "spintronic" organic light-emitting diode (that's OLED, for short) that's said to be "cheaper and more environmentally friendly than the kinds of LEDs now used in television and computer displays, lighting, traffic lights and numerous electronic devices." Z. Valy Vardeny is even going so far as to call it a "completely different technology," and better still, a prototype has already been made. The professor expects that the newfangled tech -- which produces an orange glow today -- will be able to product red, blue and white spin OLEDs within a few years. It's a lot to wade through, but here's our question: will these things make the Galaxy S XI impeccably visible in outdoor sunlight? (Please say "yes.")

Filed under: ,

Utah researchers create 'Spintronic' LED, claim it's 'brighter, cheaper' and eco-friendly originally appeared on Engadget on Sat, 14 Jul 2012 18:36:00 EDT. Please see our terms for use of feeds.

Permalink ArsTechnica  |  sourceUniversity of Utah  | Email this | Comments

Researchers store memory bit on a lone molecule, could pave the way for petabyte SSDs

Posted on by

Researchers store memory bit on a molecule, get 50,000 times denser storage than hard disk The Karlsruhe Institute of Technology (KIT) just deflated the size of a bit down to a solitary nanometer -- the length of an organic molecule. The international research team managed it by first embedding a magnetized iron atom into a molecule made up of 51 atoms, then taking advantage of so-called memristive and spintronic properties. By applying a current, they flipped the atom's magnetic charge, altering the resistance of the molecule as well -- which they subsequently measured, storing a bit. Compared to a typical magnetic drive which needs 3 million atoms per bit, a device made this way could theoretically store 50 thousand times as much data in the same size -- and would be an all-electric device, to boot. If the research ever pans out, a terabyte magnetic drive could turn into a 50 petabyte solid state unit -- hopefully ready in time for all those 4K home movies you'll need to store one day soon.

Filed under: ,

Researchers store memory bit on a lone molecule, could pave the way for petabyte SSDs originally appeared on Engadget on Wed, 11 Jul 2012 03:01:00 EDT. Please see our terms for use of feeds.

Permalink The Register  |  sourceKIT  | Email this | Comments

CCNY, UC Berkeley develop lasers that could rewrite quantum chips, spin those atoms right round

Posted on by

CCNY, UC Berkeley develop lasers that could rewrite quantum chips, spin those atoms right roundComputers are normally limited by the fixed nature of their chipsets: once the silicon is out of the factory, its capabilities are forever locked in. The City College of New York and University of California Berkeley have jointly developed a technique that could break chips free of these prisons and speed along quantum computing. They found that hitting gallium arsenide with a laser light pattern aligns the spins of the atoms under the rays, creating a spintronic circuit that can re-map at a moment's notice. The laser could be vital to quantum computers, which can depend heavily or exclusively on spintronics to work: a simple shine could get electrons storing a much wider range of numbers and consequently handling many more calculations at once. Research is only just now becoming public, however; even though gallium arsenide is common in modern technology, we'll need to be patient before we find quantum PCs at the local big-box retail chain. Despite this, we could still be looking at an early step in a shift from computers with many single-purpose components to the abstracted, all-powerful quantum machines we've held in our science fiction dreams.

CCNY, UC Berkeley develop lasers that could rewrite quantum chips, spin those atoms right round originally appeared on Engadget on Wed, 27 Jun 2012 04:26:00 EDT. Please see our terms for use of feeds.

Permalink   |  sourceCCNY, Nature  | Email this | Comments