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arXiv · 1908.04762

Prediction magnetocrystalline anisotripy Fe-Rh thin films via machine leaning

Eun Sung Jekal·Hyunwoo Park
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Abstract

Least absolute shrinkage and selection operator (Lasso) was originally formulated for least squares models and this simple case reveals a substantial amount about the behavior of the estimator. It also shows that the coefficient estimates need not be unique if covariates are collinear. Using this Lasso technique, we analyze a magnetocrystalline anisotropy energy which is a long-standing issue in transition-metal thin films, expectially for Fe-Rh thin film systems on a MgO substrate. Our LASSO regression took advantage of the data obtained from first principles calculations for single slabs with seven atomic-layers of binary Fe-Rh films on MgO(001). In the case of Fe-Rh thin films, we have successfully found a linear behavior between the MCA energy and the anisotropy of orbital moments.

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Eun Sung Jekal, Hyunwoo Park. 2019-08-06. Prediction magnetocrystalline anisotripy Fe-Rh thin films via machine leaning. https://arxiv.org/abs/1908.04762

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