Tuesday, February 14, 2012
Recording by heat pulses
The secret behind this new technology lies in a new system of recording by heat pulses. The researchers found that they could record data using only heat, applying ultrashort heat pulses with a laser, changing North-South magnetic orientation of magnetic nanoparticles pairs.
Consecutive heat pulses change the North-South orientation to South-North, which can be perfectly translated into zeros and ones and be used as storage system.
They claimed that this discovery will not only make future magnetic recording devices faster, but more energy-efficient too, since it could be developed a method to use the heat emitted by other components.