Modified Born method for modeling melting temperature usingmolecular dynamics.

J Phys Condens Matter

Department of Physics, Binghamton University-SUNY, Binghamton, NY 13902, United States of America.

Published: June 2023

The prediction of a material's melting point through computational methods is a very difficult problem due to system size requirements, computational efficiency and accuracy within current models. In this work, we have used a newly developed metric to analyze the trends within the elastic tensor elements as a function of temperature to determine the melting point of Au, Na, Ni, SiOand Ti within ±20 K. This work uses our previously developed method of calculating the elastic constants at finite temperatures, as well as leveraging those calculations into a modified Born method for predicting melting point. While this method proves to be computationally expensive, the level of accuracy of these predictions is very difficult to reach using other existing computational methods.

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Source
http://dx.doi.org/10.1088/1361-648X/acdb25DOI Listing

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