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Sampling the energy landscape of Pt13 with metadynamics

  • Luca Pavan
  • Cono Di Paola
  • Francesca BalettoEmail author
Regular Article
Part of the following topical collections:
  1. Topical issue: ISSPIC 16 - 16th International Symposium on Small Particles and Inorganic Clusters

Abstract

The potential energy surface of a metallic nanoparticle formed by 13 atoms of platinum is efficiently explored using metadynamics in combination with empirical potential molecular dynamics. The scenario obtained is wider and more complex of what was previously reported: more than thirty independent energy basins are found, corresponding to different local minima of Pt. It is demonstrated that in almost all the cases these motifs are local minima even at ab-initio level, hence proving the effectiveness of the method to sample the energy landscape. A classification of the minima in structural families is proposed, and a discussion regarding the shape and the connections between energy basins is reported.

Keywords

Free Energy Surface Energy Landscape Face Centre Cubic Collective Variable Basin Shape 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Department of PhysicsKing’s College LondonLondonUK

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