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Home > News > Memory material is spot-on

February 16th, 2005

Memory material is spot-on

A new system for high-density data storage can store around 29 gigabits of information per square inch nearly three times the amount on a state-of-the-art commercial DVD. And the researchers who have developed it think that further increases in storage density of perhaps as much as 100-fold might be possible.

Gary Gibson of the Hewlett-Packard Laboratories in Palo Alto, California, and colleagues have devised a new 'phase-change' recording medium1, in which bits of information are stored as regions of material with a different phase a different atomic-scale structure from the surrounding material. Phase-change data storage is already used in rewritable compact disks and DVDs for optical memory technology, and it is being developed as a potential rival to flash memory for semiconductor electronic devices.

* Nature

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