RacetrackMemory
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IBM wants to kill the hard drive it invented
Saving files to memory is something that's supposed to be mostly invisible for the end user. We don't need to think about it; it just has to work. But whether it's a solid-state or hard disk drive, conventional storage solutions have their limitations -- namely, speed, rewritability and durability. A team at IBM Research's Almaden facility in California has a cure for all of that and it's called "racetrack memory."
IBM makes racetrack memory breakthrough, which could come in handy someday
If you can't tell your DRAM from your STT-MRAM, you'll need to bear with us for a sec: IBM's figured out the math required to read and write data from the spaces between magnetic fields, racing across a nanowire, at hundreds of miles per hour. IBM's been plugging away at the so-called racetrack memory since 2004, calling it the perfect hybrid of magnetic storage and flash, but until recently scientists didn't know whether the magnetic domain walls (where data will live) had any mass to speak of. As it turns out, they do, and thus have to obey the tiresome laws of physics as they move along the nanowire "track," but also accelerate and decelerate the exact same amount, more or less canceling out the effect. Long story short, IBM can use this knowledge to precisely position those 1s and 0s in their newfound data bank, and someday we'll all reap the benefits of dense, speedy and reliable memory. You know, assuming PRAM, FeRAM, and ReRAM don't eat IBM's lunch. PR after the break.
New research aims to speed up MRAM in a future you'll never live to see (probably)
A month after German researchers announced their latest breakthrough in MRAM design, physicists at Japan's Tohoku University now say that it is possible to use an electric field to manipulate the magnetic domains in a semiconductor -- eliminating moving magnets from MRAM completely. MRAM designed using the electric field method would be faster -- and would use less energy -- than earlier variations on the technology, thus making our lives easier and generally more awesome. Of course, none of this stuff actually exists yet, and it's still got fierce competition from competing ideas (like IBM's racetrack memory), so for now we'll just have to stay content with the four 128k chips we scraped out of our old XT.[Via MRAM Info]
IBM's racetrack memory dashing towards commercialization
So, how do you go about impressing the world after busting out a few systems based around the "fastest chip on Earth?" By getting us all worked up for a little thing called racetrack memory, that's how. Far from being the first memory technology that runs laps around the DIMMs we're relying on today, IBM researchers are suggesting that this iteration could enable users to store substantially more data at a lower cost and be available in around a decade. Put simply, the gurus working the project have discovered a way to overcome the prohibitively expensive process of manipulating domain walls in magnetic storage, essentially making a long-standing approach entirely more viable. If you're totally in nerd heaven right now, we assure you, checking out the explanatory video waiting after the jump is a must-do.[Via BBC]
