Evaluation of Machine Learning Interatomic Potentials for the Properties of Gold Nanoparticles

Autor: Marco Fronzi, Roger D. Amos, Rika Kobayashi, Naoki Matsumura, Kenta Watanabe, Rafael K. Morizawa
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Nanomaterials, Vol 12, Iss 21, p 3891 (2022)
Druh dokumentu: article
ISSN: 2079-4991
DOI: 10.3390/nano12213891
Popis: We have investigated Machine Learning Interatomic Potentials in application to the properties of gold nanoparticles through the DeePMD package, using data generated with the ab-initio VASP program. Benchmarking was carried out on Au20 nanoclusters against ab-initio molecular dynamics simulations and show we can achieve similar accuracy with the machine learned potential at far reduced cost using LAMMPS. We have been able to reproduce structures and heat capacities of several isomeric forms. Comparison of our workflow with similar ML-IP studies is discussed and has identified areas for future improvement.
Databáze: Directory of Open Access Journals