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March 23rd, 2009
Heating Up Magnetic Memory
Abstract:
Seagate demonstrates a way to extend magnetic storage
Story:
Demand for data storage keeps going up, even while consumers expect the cost per bit to keep going down. However, the magnetic-recording materials used in today's hard disks are reaching their storage limits and will probably max out within five years. To compete with newer technologies such as flash, the companies that make them need something new.
Now researchers at Seagate have demonstrated the feasibility of a new technology that could extend the capacity of magnetic data recording for many years more. Called heat-assisted magnetic recording, it involves blasting the magnetic regions of a disk with heat to make them more stable, and it should make it possible to record data at densities 50 times greater than will be possible when today's technologies reach their limits.
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