Communications of the ACM
Toward More Efficient Computing, With Magnetic Waves
A novel circuit design developed by researchers at the Massachusetts Institute of Technology enables precise control of computing with magnetic waves.
Credit: Luqiao Liu et al
Massachusetts Institute of Technology (MIT) researchers have developed a circuit design that enables control of computing using magnetic waves, rather than electricity.
This development is a step toward practical magnetic-based devices, which have the potential to compute much more efficiently than electronics.
The researchers developed a circuit architecture that uses a nanometer-wide domain wall in layered nanofilms of magnetic material to modulate a passing spin wave (a quantum property of electrons) without any added components or electrical current. This allows the spin wave to be tuned to the location of the domain wall as needed.
Said MIT’s Luqiao Liu, "People are beginning to look for computing beyond silicon. Wave computing is a promising alternative."
From "Toward More Efficient Computing, With Magnetic Waves"
MIT News (11/28/19) Rob Matheson
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