SOT-driven dynamics of epitaxially grown Mn3Sn films with Mn addition by co-sputtering

Sanghoon Kim

doi:10.1117/12.3030615

4 October 2024 SOT-driven dynamics of epitaxially grown Mn₃Sn films with Mn addition by co-sputtering

Sanghoon Kim

Author Affiliations +

Proceedings Volume PC13119, Spintronics XVII; PC131192E (2024) https://doi.org/10.1117/12.3030615
Event: Nanoscience + Engineering, 2024, San Diego, California, United States

Abstract

Antiferromagnetic materials have emerged as a focal point within spintronics for advancing the next generation of picosecond and densely integrated information technologies. Their appeal stems from the absence of stray fields and the remarkable speed of spin dynamics they offer. Among these materials, the hexagonal D019-Mn3X (X = Ga, Ge, Sn) family stands out as exemplars of non-collinear spin structures. Notably, within this family, the magnetic Weyl semimetal Mn3Sn, distinguished by its unique Kagome lattice spin arrangement, showcases a spectrum of exotic properties. Despite its minimal magnetization, Mn3Sn manifests a notable anomalous Hall effect (AHE), attributed to a non-zero net Berry curvature in bands proximate to the Fermi level. Evidently, the magnetic characteristics of Mn3Sn are markedly influenced by diverse factors, including growth conditions and the presence of other phases. This presentation delves into an examination of various spin-orbit torque (SOT)-driven dynamic properties, such as current-induced switching and chiral rotation, within Mn3Sn/W heterostructures. Emphasis is particularly placed on elucidating the effects of interfacial structure.

Conference Presentation

Citation Download Citation

Sanghoon Kim "SOT-driven dynamics of epitaxially grown Mn₃Sn films with Mn addition by co-sputtering", Proc. SPIE PC13119, Spintronics XVII, PC131192E (4 October 2024); https://doi.org/10.1117/12.3030615

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