Mosaic anisotropy model for magnetic interactions in mesostructured crystals
Abby R. Goldman, Emily Asenath-Smith, Lara A. Estroff
APL Materials · 2017
doi:10.1063/1.5007794 (opens in a new tab)
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Abstract
We propose a new model for interpreting the magnetic interactions in crystals with mosaic texture called the mosaic anisotropy (MA) model. We test the MA model using hematite as a model system, comparing mosaic crystals to polycrystals, single crystal nanoparticles, and bulk single crystals. Vibrating sample magnetometry confirms the hypothesis of the MA model that mosaic crystals have larger remanence (Mr/Ms) and coercivity (Hc) compared to polycrystalline or bulk single crystals. By exploring the magnetic properties of mesostructured crystalline materials, we may be able to develop new routes to engineering harder magnets.
Abstract licence: CC BY
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