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ClustersClusters are finite aggregates of atoms or molecules, which can contain from a few to tens of thousands of atoms or molecules, and so they provide a bridge between isolated atoms and molecules and bulk matter. In this intermediate size regime it is particularly interesting to observe the emergence of properties that involve the collective behaviour of the atoms and molecules and to see how these properties evolve to the familiar bulk-like behaviour. Cluster science is an expanding field of inter-disciplinary research both because of advances in experimental and theoretical techniques and because of the importance of metal clusters in catalysis and their relevance to nanotechnology---the manipulation of matter to produce structures and devices on the nanometer length scale.My research into clusters includes the following: |