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CHIPS-FF: Evaluating Universal Machine Learning Force Fields for Material Properties
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DOI：10.1021/acsmaterialslett.5c00093.png)
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Abstract
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We introduce CHIPS-FF (Computational High-Performance Infrastructure for Predictive Simulation-based Force Fields), an open-source benchmarking platform for machine learning force fields (MLFFs). This platform focuses on complex properties including elastic constants, phonon spectra, defect formation energies, surface energies, and interfacial and amorphous phase properties. Utilizing 16 graph-based MLFFs including ALIGNN-FF, CHGNet, MatGL, MACE, SevenNet, ORB, MatterSim, and OMat24, CHIPS-FF integrates the Atomic Simulation Environment (ASE) with JARVIS-Tools to facilitate high-throughput simulations. Our framework is tested on a set of 104 materials, including metals, semiconductors, and insulators representative of those used in semiconductor components, with each MLFF evaluated for convergence, accuracy, and computational cost. Additionally, we evaluate the force-prediction accuracy of these models for close to 2 million atomic structures. By offering a streamlined, flexible benchmarking infrastructure, CHIPS-FF aims to guide the development and deployment of MLFFs for real-world semiconductor applications, bridging the gap between quantum mechanical simulations and large-scale device modeling.
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