Journal Article FZJ-2025-02414

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Machine Learning-based estimation and explainable artificial intelligence-supported interpretation of the critical temperature from magnetic ab initio Heusler alloys data

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2025
APS College Park, MD

Physical review materials 9(4), 044412 () [10.1103/PhysRevMaterials.9.044412]

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Abstract: Machine learning (ML) has impacted numerous areas of materials science, most prominently improving molecular simulations, where force fields were trained on previously relaxed structures. One natural next step is to predict material properties beyond structure. In this work, we investigate the applicability and explainability of ML methods in the use case of estimating the critical temperature (𝑇c) for magnetic Heusler alloys calculated using ab initio methods determined materials-specific magnetic interactions and a subsequent Monte Carlo (MC) approach. We compare the performance of regression and classification models to predict the range of the 𝑇c of given compounds without performing the MC calculations. Since the MC calculation requires computational resources in the same order of magnitude as the density functional theory (DFT) calculation, it would be advantageous to replace either step with a less computationally intensive method such as ML. We discuss the necessity to generate the magnetic ab initio results to make a quantitative prediction of the 𝑇c. We used state-of-the-art explainable artificial intelligence (XAI) methods to extract physical relations and deepen our understanding of patterns learned by our models from the examined data.

Classification:

Contributing Institute(s):
  1. Quanten-Theorie der Materialien (PGI-1)
Research Program(s):
  1. 5211 - Topological Matter (POF4-521) (POF4-521)

Appears in the scientific report 2025
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Medline ; Creative Commons Attribution CC BY 4.0 ; OpenAccess ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection
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 Record created 2025-05-05, last modified 2025-06-10


OpenAccess:
Pre-Postprint_2311.15423v1 - Download fulltext PDF
PhysRevMaterials.9.044412 - Download fulltext PDF
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