Computing, with Magnetic Waves


Researchers have devised a novel circuit design that enables precise control of computing with magnetic waves with no electricity needed. The advance takes a step toward practical magnetic-based devices, which have the potential to compute far more efficiently than electronics.

Classical computers rely on massive amounts of electricity for computing and data storage, and generate a lot of wasted heat. In search of more efficient alternatives, researchers have started designing magnetic-based "spintronic" devices, which use relatively little electricity and generate practically no heat.

A circuit architecture that uses only a nanometer-wide domain wall in layered nanofilms of magnetic material to modulate a passing spin wave, without any extra components or electrical current was developed. In turn, the spin wave can be tuned to control the location of the wall, as needed. This provides precise control of two changing spin wave states, which correspond to the 1s and 0s used in classical computing.

The Journal of Physical Chemistry & Biophysics provides pace for diverse areas of physics in relation to Organic and inorganic chemistry, Mathematics, to biological phenomena, earth’s atmosphere. The scope the journal is not limited to, but covers role of physics in every aspect.

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