Precession-free domain wall dynamics in compensated ferrimagnets
arXiv:1908.08867 · doi:10.1038/s41598-020-73049-5
Abstract
One fundamental obstacle to efficient ferromagnetic spintronics is magnetic precession, which intrinsically limits the dynamics of magnetic textures, We demonstrate that the domain wall precession fully vanishes with a record mobility when the net angular momentum is compensated (TAC) in DWs driven by spin-orbit torque in a ferrimagnetic GdFeCo/Pt track. We use transverse in-plane fields to reveal the internal structure of DWs and provide a robust and parameter-free measurement of TAC. Our results highlight the mechanism of faster and more efficient dynamics in materials with multiple spin lattices and reduced net angular momentum, promising for high-speed, low-power spintronics applications.
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Cited by in corpus (7)
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- Spin-orbit coupling in single layer ferrimagnets: direct observation of spin-orbit torques and chiral spin textures
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