Investigating robustness of interatomic potentials with universal interface

Bohumir Jelinek, Kiran Solanki, John F. Peters, Sergio D. Felicelli

Research output: Contribution to journalArticle

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Abstract

We present a set of Python routines to perform basic tests of classical atomistic potentials and their example applications. These routines are implemented using universal Atomic Simulation Environment (ASE) and LAMMPS molecular dynamics code. ASE is utilized to create atomic configurations, to write input scripts for LAMMPS, and to read results from output files. Evaluated properties are formation energies and volumes of simple point defects (vacancies, substitutions, and interstitials), formation energies of basic surfaces, heats of formation of simple binary compounds, and elastic constants. The flexibility of LAMMPS allows easy switching between different semi-empirical potentials, while the universality of ASE allows to compare results with a variety of electronic structure codes.

Original languageEnglish (US)
Article number012006
JournalJournal of Physics: Conference Series
Volume402
Issue number1
DOIs
Publication statusPublished - 2012

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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