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Scientists Use Electron 'Ink' to Write on Graphene 'Paper'
new technology could be a relatively simple and inexpensive method of
creating permanent, high density records storage. Using an
electron beam, the planar hexagonal carbon matrix of graphene
(2-dimensional by definition) is disturbed
and replaced by a 3D clump of carbon atoms that provide a discernable
relief easily recognized as printing under a microscope. While the print
could be similar to a normal printed page, it might be more useful to
encode the information in some other form that will require decryption
to read. Magnetic and optical digital storage media is notoriously non-permanent
due to cold flow and migration of localized storage domains. This process
eliminates that problem.