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Machine learning (ML) based interatomic potentials are emerging tools for materials simulations but require a trade-off between accuracy and speed. Here we show how one can use one ML potential model to train another: we use an existing,…

材料科学 · 物理学 2022-09-20 Joe D. Morrow , Volker L. Deringer

We present a benchmark designed to evaluate the predictive capabilities of universal machine learning interatomic potentials across systems of varying dimensionality. Specifically, our benchmark tests zero- (molecules, atomic clusters,…

材料科学 · 物理学 2025-08-22 Giulio Benedini , Antoine Loew , Matti Hellstrom , Silvana Botti , Miguel A. L. Marques

Interatomic potential models based on machine learning (ML) are rapidly developing as tools for materials simulations. However, because of their flexibility, they require large fitting databases that are normally created with substantial…

材料科学 · 物理学 2019-11-19 Noam Bernstein , Gábor Csányi , Volker L. Deringer

Potentials that could accurately describe the irradiation damage processes are highly desired to figure out the atomic-level response of various newly-discovered materials under irradiation environments. In this work, we introduce a…

材料科学 · 物理学 2020-10-20 Hao Wang , Xun Guo , Jianming Xue

We present an accurate machine learning (ML) model for atomistic simulations of carbon, constructed using the Gaussian approximation potential (GAP) methodology. The potential, named GAP-20, describes the properties of the bulk crystalline…

Machine-learned interatomic potentials are revolutionising atomistic materials simulations by providing accurate and scalable predictions within the scope covered by the training data. However, generation of an accurate and robust training…

Machine learning (ML) is widely used to explore crystal materials and predict their properties. However, the training is time-consuming for deep-learning models, and the regression process is a black box that is hard to interpret. Also, the…

材料科学 · 物理学 2023-08-22 Xinyu Jiang , Haofan Sun , Kamal Choudhary , Houlong Zhuang , Qiong Nian

For large-scale atomistic simulations of magnetic materials, the interplay of atomic and magnetic degrees of freedom needs to be described with high computational efficiency. Here we present an analytic bond-order potential (BOP) for…

Developing data-driven machine-learning interatomic potentials for materials containing many elements becomes increasingly challenging due to the vast configuration space that must be sampled by the training data. We study the learning…

材料科学 · 物理学 2022-08-16 Jesper Byggmästar , Kai Nordlund , Flyura Djurabekova

There has been an ongoing race for the past several years to develop the best universal machinelearning interatomic potential. This progress has led to increasingly accurate models for predictingenergy, forces, and stresses, combining…

材料科学 · 物理学 2025-05-09 Antoine Loew , Dewen Sun , Hai-Chen Wang , Silvana Botti , Miguel A. L. Marques

The success of first principles electronic structure calculation for predictive modeling in chemistry, solid state physics, and materials science is constrained by the limitations on simulated length and time scales due to computational…

材料科学 · 物理学 2018-12-19 Albert P. Bartok , James Kermode , Noam Bernstein , Gabor Csanyi

The length and time scales of atomistic simulations are limited by the computational cost of the methods used to predict material properties. In recent years there has been great progress in the use of machine learning algorithms to develop…

计算物理 · 物理学 2022-11-03 Alberto Hernandez , Adarsh Balasubramanian , Fenglin Yuan , Simon Mason , Tim Mueller

Reduced order models are computationally inexpensive approximations that capture the important dynamical characteristics of large, high-fidelity computer models of physical systems. This paper applies machine learning techniques to improve…

机器学习 · 计算机科学 2015-11-11 Azam Moosavi , Razvan Stefanescu , Adrian Sandu

Efficient and accurate interatomic potential functions are critical to computational study of materials while searching for structures with desired properties. Traditionally, potential functions or energy landscapes are designed by experts…

材料科学 · 物理学 2022-04-05 Andrew Eldridge , Alejandro Rodriguez , Ming Hu , Jianjun Hu

We introduce a Gaussian approximation potential (GAP) for atomistic simulations of liquid and amorphous elemental carbon. Based on a machine-learning representation of the density-functional theory (DFT) potential-energy surface, such…

材料科学 · 物理学 2017-03-08 Volker L. Deringer , Gábor Csányi

All-atom dynamics simulations are an indispensable quantitative tool in physics, chemistry, and materials science, but large systems and long simulation times remain challenging due to the trade-off between computational efficiency and…

材料科学 · 物理学 2024-03-21 Stephen R. Xie , Matthias Rupp , Richard G. Hennig

A computationally efficient and accurate machine-learned (ML) interatomic potential is developed for Ti$_{n+1}$C$_n$ MXenes. With a diverse set of structures computed with density functional theory, the trained ML potential demonstrates…

材料科学 · 物理学 2026-03-05 Jesper Byggmästar

Establishing the structure-property relationship in amorphous materials has been a long-term grand challenge due to the lack of a unified description of the degree of disorder. In this work, we develop SPRamNet, a neural network based…

材料科学 · 物理学 2024-10-07 Mouyang Cheng , Chenyan Wang , Chenxin Qin , Yuxiang Zhang , Qingyuan Zhang , Han Li , Ji Chen

The allotropes of boron continue to challenge structural elucidation and solid-state theory. Here we use machine learning combined with random structure searching (RSS) algorithms to systematically construct an interatomic potential for…

材料科学 · 物理学 2018-04-18 Volker L. Deringer , Chris J. Pickard , Gábor Csányi

Machine-learned interatomic potentials are fast becoming an indispensable tool in computational materials science. One approach is the ephemeral data-derived potential (EDDP), which was designed to accelerate atomistic structure prediction.…