Abstract
Electric field control of the structure, dimensionality, and reactivity of gold nanoclusters () deposited on MgO films of various thicknesses supported on Ag(100) are introduced and studied using first-principles electronic structure calculations. Field-controlled interfacial charging and field-induced dimensionality crossover are predicted. For a field , an optimal planar island on is determined, while for , the preferred structure of the cluster is a tetrahedron. Field control of the reactivity of the adsorbed nanocluster with is discussed.
- Received 7 September 2007
DOI:https://doi.org/10.1103/PhysRevLett.100.056102
©2008 American Physical Society