As the search for more compact data storage continues, crystallographic constraint of magnetic moments remains an important piece of the puzzle. Here, the authors explore these magnetic interactions in pyrrhotite (Fe₇S₈), a magnetoelastic mineral that exhibits a nanoscale coupling between its ferroelastic and ferromagnetic domains. Careful quantification of the magnetic force microscopy imaging allows for a direct correlation between the bulk magnetic properties (as seen with magnetometry) and local micromagnetic structure, which reveals the ferroelastic twins beneath.
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Seddon et al. (2024) studied this question.
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