Gizmodo -
Rather than trying to shrink current data storage technologies
further, IBM took the opposite approach and designed a new system from
the ground up, building it individual atoms. The new storage could lead
to 100-fold increases in chip densities. Take that, Moore's Law.
Researchers
at IBM, in conjunction with the German Center for Free-Electron Laser
Science, used a scanning tunneling microscope to line up iron atoms that
comprise the magnetic storage system. They found that twelve iron
atoms, assembled in two rows of six, was the minimum number necessary to
stably hold a single bit of information. Eight pairs of rows,
obviously, are needed to hold a byte. Conventional hard drives require
more than a million atoms per bit, topping a half billion per byte.
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http://gizmodo.com/5875674/ibm-figures-out-how-many-atoms-it-takes-to-hold-a-bit-hint-its-12
2012/01/13
Storage: IBM Figures Out How Many Atoms It Takes to Hold a Bit (Hint: It's 12)
