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Approaching Bulk from the Nanoscale: Extrapolation of Binding Energy from Rock-Salt Cuts of Alkaline Earth Metal Oxides


Susanne G.E.T. Escher
Helen D. Duncan
Alexey A. Sokol
Scott M. Woodley

Abstract

A systematic DFT study is performed on (MgO)n, (CaO)n, (SrO)n, and (BaO)n clusters with 6 < n < 50, and which display a cuboid 2×2×2 atomic motif seen in the bulk, rock-salt, configuration. The stability and energy progression of these clusters are used to predict the energies of infinitely long nanorods, or nanowires, slabs, and the bulk global minimum energy.


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eISSN: 1996-840X
print ISSN: 0379-4350