The first high-speed straight motion of magnetic skyrmions at room temperature demonstrated

phys.org | 8/22/2019 | Staff
echoleaecholea (Posted by) Level 3
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Researchers at Tohoku University have, for the first time, successfully demonstrated a formation and current-induced motion of synthetic antiferromagnetic magnetic skyrmions. The findings are expected to pave the way towards new functional information processing and storage technologies.

The magnetic skyrmion is known to be a topological object that emerges in magnetic systems. It possesses the ability to be made at the nanoscale and to be driven by a current, showing promise for various applications where information is represented by the presence, absence, number, or state of the skyrmion. However, there remains one stumbling block—the skyrmion Hall effect.

Skyrmion - Hall - Effect - Skyrmion - Direction

The skyrmion Hall effect entails the skyrmion not moving along the current, but in the direction diagonal to the current because of the inherent angular momentum of the skyrmion, degrading the efficiency and stability of devices. As such, demand is high for technology that overcomes the skyrmion Hall effect.

The research group—which includes Professor Hideo...
(Excerpt) Read more at: phys.org
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