Comparison of two tungsten-helium interatomic potentials
LF Wang and XL Shu and GH Lu, JOURNAL OF MATERIALS RESEARCH, 30, 1464-1472 (2015).
We have clarified the performance of two tungsten-helium analytical interatomic potentials, one of which, developed by Li et al., is a bond- order potential, and another, developed by Juslin et al., is a combination of embedded atom method potential and pair potential. Using these two potentials, we have simulated and made a full comparison of formation energy and migration energy of different defects including helium and vacancy, binding energies of helium and vacancy with helium- vacancy cluster, surface energy, as well as melting point, with reference to the corresponding results from the first-principles and experiments.
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