Light-controlled nanomagnetic computation

Nanomagnetic logics is a computational technology combining data storage and processing using magnetic phenomena.

Advantages are nonvolatility, low power dissipation, and CMOS compatibility.

Plasmon-assisted ns-pulsed photo-heating can be used to thermally activate the magnetic switching of selected nanostructures, based on wavelength and polarization of light.

In the example above, this property is utilized to magnetically activate the output element of a simple nanomagnetic network implementing a reconfigurable, fast, and energy efficient Or/And nanomagnetic logic gate.