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Magnon Transport in Quasi-Two-Dimensional van der Waals Antiferromagnets
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Magnon Transport in Quasi-Two-Dimensional van der Waals Antiferromagnets
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Journal Article
Magnon Transport in Quasi-Two-Dimensional van der Waals Antiferromagnets
2019
Overview
The recent emergence of 2D van der Waals magnets down to atomic-layer thickness provides an exciting platform for exploring quantum magnetism and spintronics applications. The van der Waals nature stabilizes the long-range ferromagnetic order as a result of magnetic anisotropy. Furthermore, giant tunneling magnetoresistance and electrical control of magnetism have been reported. However, the potential of 2D van der Waals magnets for magnonics, magnon-based spintronics, has not been explored yet. Here, we report the experimental observation of long-distance magnon transport in quasi-two-dimensional van der Waals antiferromagnetMnPS3, which demonstrates the 2D magnets as promising material candidates for magnonics. As the 2DMnPS3thickness decreases, a shorter magnon diffusion length is observed, which could be attributed to the surface-impurity-induced magnon scattering. Our results could pave the way for exploring quantum magnonics phenomena and designing future magnonics devices based on 2D van der Waals magnets.
