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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2508.10505 |
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| _version_ | 1866916978473566208 |
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| author | Kang, Hanwen Lu, Tenglong Qi, Zhanbin Guo, Jiandong Meng, Sheng Liu, Miao |
| author_facet | Kang, Hanwen Lu, Tenglong Qi, Zhanbin Guo, Jiandong Meng, Sheng Liu, Miao |
| contents | We introduce a rapid, accurate framework for computing atomic migration barriers in crystals by combining universal machine learning force fields (MLFFs) with 3D potential energy surface sampling and interpolation. Our method suppresses periodic self interactions via supercell expansion, builds a continuous PES from MLFF energies on a spatial grid, and extracts minimum energy pathways without predefined NEB images. Across twelve benchmark electrode and electrolyte materials including LiCoO2, LiFePO4, and LGPS our MLFF-derived barriers lie within tens of meV of DFT and experiment, while achieving ~10^2 x speedups over DFT-NEB. We benchmark GPTFF, CHGNet, and MACE, show that fine-tuning on PBE/PBE+U data further enhances accuracy, and provide an open-source package for high-throughput materials screening and interactive PES visualization. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_10505 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | FastTrack: a fast method to evaluate mass transport in solid leveraging universal machine learning interatomic potential Kang, Hanwen Lu, Tenglong Qi, Zhanbin Guo, Jiandong Meng, Sheng Liu, Miao Materials Science Computational Physics We introduce a rapid, accurate framework for computing atomic migration barriers in crystals by combining universal machine learning force fields (MLFFs) with 3D potential energy surface sampling and interpolation. Our method suppresses periodic self interactions via supercell expansion, builds a continuous PES from MLFF energies on a spatial grid, and extracts minimum energy pathways without predefined NEB images. Across twelve benchmark electrode and electrolyte materials including LiCoO2, LiFePO4, and LGPS our MLFF-derived barriers lie within tens of meV of DFT and experiment, while achieving ~10^2 x speedups over DFT-NEB. We benchmark GPTFF, CHGNet, and MACE, show that fine-tuning on PBE/PBE+U data further enhances accuracy, and provide an open-source package for high-throughput materials screening and interactive PES visualization. |
| title | FastTrack: a fast method to evaluate mass transport in solid leveraging universal machine learning interatomic potential |
| topic | Materials Science Computational Physics |
| url | https://arxiv.org/abs/2508.10505 |