IBM scientists have created the world’s smallest magnet from a single atom and retained one bit of information
This week’s research division, IBM reported a record achievement in the field of information storage. Scientists have managed to create the world’s smallest magnet from a single atom to store one bit of information.
For comparison: in modern hard disk drives store information using magnetic recording to store one bit of information is activated about 100,000 atoms. Using to store one bit of only one atom, it would be possible to increase the storage density so that, for example, the entire iTunes library of 35 million sound would fit in a device the size of a credit card.
The achievement of IBM is based on years of research in the field of nanotechnology. The researchers plan to study its potential use in quantum computers for quantum computing using information stored in separate atoms.
Manipulation of individual atoms are performed in a high vacuum using a scanning tunneling microscope, invented at IBM in 1981. To individual atoms could retain its magnetic orientation is long enough for reliable recording and reading is used cooling with liquid helium.
Source: IBM Research