Formation of Polymorphic Cluster Phases for a Class of Models of Purely Repulsive Soft Spheres
- 30 January 2006
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 96 (4), 045701
- https://doi.org/10.1103/physrevlett.96.045701
Abstract
We present results from density functional theory and computer simulations that unambiguously predict the occurrence of first-order freezing transitions for a large class of ultrasoft model systems into cluster crystals. The clusters consist of fully overlapping particles and arise without the existence of attractive forces. The number of particles participating in a cluster scales linearly with density, therefore the crystals feature density-independent lattice constants. Clustering is accompanied by polymorphic bcc-fcc transitions, with fcc being the stable phase at high densities.This publication has 31 references indexed in Scilit:
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