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arXiv · 2601.06691

Higher order magnetoelasticity energy corrections in bcc and fcc systems

Jakub Šebesta·Ondřej Faiman·Dominik Legut
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Abstract

Magnetoelastic properties play a vital role in industrial applications. Despite being hidden behind either purely magnetic or elastic behavior, magnetoelasticity takes place in a wide range of devices as transducers, acoustic actuators, or fast response sensors. In this work, we inspect the impact of higher-order terms on the anisotropic magnetostriction behavior. Regarding ab-initio calculations, the anisotropic magnetostriction can be related to the strain dependence of the magnetocrystaline energy. Commonly, the description is restricted to a linear strain dependence in the magnetoelastic energy. Here, we derive higher-order terms in strain for bcc and fcc crystal structures. Using a simple parametrization, we show that the influence of the higher-order strain terms is negligible for the studied cubic systems.

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Jakub Šebesta, Ondřej Faiman, Dominik Legut. 2026-01-10. Higher order magnetoelasticity energy corrections in bcc and fcc systems. https://doi.org/10.1016/j.jmmm.2026.174412

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