College Park, MD (April 19, 2011)-well-known with patterned media, a team of researchers in France a way, the areal density of information has to a double in the essence which cut magnetic media into small pieces and establishing "3D Tower" found out of it.
This significantly improves a method over a wall of the physical borders to achieve the amount of data can be stored in a magnetic storage device, and is currently used by the meet technology. The team presented their findings in the American Institute of physics' Journal of applied physics.
"In the last 50 years with the rise of multimedia devices, the global Internet and the General increase in the demand for greater data storage capacity, the areal density of information in magnetic hard drives exponentially increased to 7 orders of magnitude" says Jerome Moritz, researcher at the SPINTEC in Grenoble. "This areal density is now on 500Gbit/in2 and the technology currently used includes the writing of the details of a granular magnetic materials." "This technology is now reaching some physical limits because the grains are so small, that their magnetization unstable and gradually lost the information on it."
Therefore, new approaches are required density for magnetic data storage of more than 1Tbit/in2.
"Our new approach involves using bit patterned media bearing with each Nanodot a bit of information from the array of physically separated magnetic Nanodots, are made." To further enhance the storage density, it is possible, the number of bits per points increase multiple magnetic layers stack multilevel magnetic recording device, to get ", explains Moritz."
In this context were Moritz and colleagues can show that the best way to a 2-bit per dot media reach stacking in-plane and perpendicular-to plane magnetic media up to each point includes. The perpendicular magnetized layer can be read directly above the dot, while the magnetized layer in the layer between points can be read. The area of all patterned media enables this doubling the density for a specific point size by better use.
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