Publication: Effects of the range of the potential on the structure and dynamics of two-dimensional Coulomb clusters
Program
KU-Authors
KU Authors
Co-Authors
Calvo, Florent
Publication Date
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Type
Embargo Status
Journal Title
Journal ISSN
Volume Title
Alternative Title
Abstract
The structure, dynamics, and thermodynamics of finite systems of two-dimensional particles interacting mutually through a shielded Coulomb potential, V(r) = e((-kappa r))/r, and bound together by an isotropic parabolic trap, are investigated by means of global optimization and simulation methods. As the range of the potential decreases, or as kappa increases, the number of distinct minima rapidly increases for a given size and the cluster generally shrinks. Looking more specifically at selected sizes below 50, non-monotonic cluster size effects seem to dominate the energetics, chaotic dynamics, and thermodynamics, even though the melting point is weakly affected by the range of the potential.
Source
Publisher
Taylor & Francis Ltd
Subject
Chemistry, physical and theoretical, Physics, Atomic structure, Molecular dynamics, Chemical engineering
Citation
Has Part
Source
Molecular Physics
Book Series Title
Edition
DOI
10.1080/00268970701798911