April 12, 2008
I remember posting sometime late last year about the potential for even more memory in your iPod (160Gb just isn’t enough!?!) - Atomic Memory Storage…(01/09/2007) - but here is yet another hint at what the future has in store for us…
Published this week in Science a team at IBM have declared they have a novel way of successfully storing fast and stable memory in something called ‘racetrack’ memory. The idea is that memory is stored on nanowires, and electrons are pushed around the track, moving domains which can be charged one way of another, ultimately as 1 or 0 (binary storage) depending on which way the domain is magnetized.
The journal article is cited below, but the following link should take you to an introductory article in science which explains the science (and controversy it’s causing) with a bit more detail.
http://www.sciencemag.org/cgi/content/full/320/5873/166?rss=1
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Hayashi, M., Thomas, L., Moriya, R., Rettner, C., Parkin, S.S. (2008). Current-Controlled Magnetic Domain-Wall Nanowire Shift Register. Science, 320(5873), 209-211. DOI: 10.1126/science.1154587
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