Researchers have developed a groundbreaking method to create more compact and energy-efficient computing devices using magnonic circuits.
By utilizing alternating currents to generate and steer spin waves in synthetic ferrimagnetic vortex pairs, this new approach promises significant advancements over traditional CMOS technology, potentially leading to the next generation of computing systems.
The central processing units (CPUs) in our laptops, desktops, and phones rely on billions of transistors built with complementary metal oxide semiconductor (CMOS) technology. As the demand to shrink these devices grows, physical constraints and concerns about their long-term viability have emerged. Moreover, their significant energy consumption and losses are driving the search for alternative computing architectures.
One of the promising candidates is magnons, the quanta of spin waves. “Imagine a calm lake. If we let a stone fall into water, the resulting waves will propagate away from the point of generation. Now, we replace the lake with a magnetic material and the stone with an antenna. The propagating waves are called spin waves and can be used to transfer energy and information from one point to another with minimal losses,” says Sabri Koraltan from the University of Vienna, first author of the recent study published in the journal Science Advances on September 25.
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