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Low-price super discs
A Japanese university research team has found a material that could be used to make a low-price super disc with data storage capacity thousands of times greater than a DVD, the lead scientist said Monday.

The material transforms from a black-colour metal state that conducts electricity into a brown semiconductor when hit by light, according to Shin-ichi Ohkoshi, chemistry professor at the University of Tokyo.

The material, a new crystal form of titanium oxide, can switch back and forth between the metal and semiconductor states at room temperature when exposed to light, creating an effective on-off function.

http://www.physorg.com/news193896595.html

Filed under: Disc Discovery Innovation Storage
 

One terabyte per inch
The majority of today's hard disks use perpendicular recording, which means their storage densities are limited to a few hundred gigabytes per square inch. Scientists have for some time been trying to find ways of increasing the limit, and a new method has been proposed that could stretch the limit as high as ten terabits per square inch.

The write speed obtained by the researchers was 250 megabits per second and the error rate was low. Data tracks were separated by 24 nm, and the researchers obtained a data storage density of one terabit per square inch of high-quality data quite easily. The researchers believe 10 terabits per square inch is theoretically possible.

http://www.physorg.com/news192693274.html

Filed under: Data Hard Disk Storage
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