Ultrafast laser-powered ‘magnetic RAM’ is on the horizon

MemoryScientists have discovered a new mechanism in which a concentrated laser beam can change the magnetic state of a solid material. The finding could one day be harnessed in ultrafast computing memory, the researchers say.

The scientists formulated a new equation that describes the link between the amplitude of the magnetic field of light, its frequency and the energy absorption properties of a magnetic material. The scientists published their findings in a study on Jan. 3 in the journal Physical Review Research.

The equation is “completely new and also very elemental,” study co-author Amir Capua, a physics professor at Hebrew University of Jerusalem, told Live Science.

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