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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Magnetics and the Critical Materials Challenge: An FMD Symposium Honoring Matthew J. Kramer
Presentation Title Magnetoelastic Interactions Reduce Hysteresis in Soft Magnets
Author(s) Negar Ahani, A. Renuka Balakrishna
On-Site Speaker (Planned) Negar Ahani
Abstract Scope Soft magnets have the smallest coercivity compared to all magnets, which makes them well-suited for energy conversions, such as in rapid power-conversion electronics, induction motors for electric vehicles, and spintronics devices. More recently, soft magnets have been emerging as potential candidates for sustainable energy conversion, however, we do not have a systematic strategy to discover novel soft magnets with drastically reduced coercivities. In today's talk, I will discuss how the material's fundamental elastic stiffness constants and the residual stresses can be engineered to assist magnetization reversal and thus dramatically reduce coercivity. We use a theoretical framework based on micromagnetics to show that magnetoelastic interactions control both the shape and size of hysteresis loops. Our findings provide fundamental insights into the origins of magnetic hysteresis and propose a quantitative relationship to guide alloy development.
Proceedings Inclusion? Planned:
Keywords Magnetic Materials, Modeling and Simulation,


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Synthesis and Characterization of Rare-earth-based Metallic Glasses
Synthesis and Stabilization of Magnetic Nanoparticles of Rare-earth Metal Alloys
Utilizing High Energy X-rays to Perform In Situ observations of Alnico Spinodal Evolution

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