4.4 Article

A predictive interatomic potential for He in Cu and Nb

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IOP Publishing Ltd
DOI: 10.1088/0965-0393/19/3/035007

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  1. LANL Directed Research and Development (LDRD) program

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First principles calculations show that two-body forces are sufficient to describe interactions of He with fcc Cu and bcc Nb. This property is explained directly from calculated charge density distributions and used to construct a Cu-Nb-He interatomic potential that predicts accurate He impurity energies despite not being fitted to them.

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