Abstract

A generalisation of the Voronoi polyhedron procedure for examining the detailed local structures in multicomponent metallic glass models is described. The resulting radical plane polyhedra depend upon the relative sizes of the model atoms and form an assembly of polyhedra which completely fill space. Application of the method to two slightly different models of amorphous Pd 4Si illustrates the sensitivity of the technique to changes in local structure, and how such changes in polyhedron topology may relate to the changes in real space The method may be particularly useful in examining local changes on structural relaxation.

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