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Energy Landscape of Fullerene Materials: A Comparison of Boron to Boron Nitride and Carbon

2011; American Physical Society; Volume: 106; Issue: 22 Linguagem: Inglês

10.1103/physrevlett.106.225502

1092-0145

Sandip De, Alexander Willand, Maximilian Amsler, Pascal Pochet, Luigi Genovese, Stefan Goedecker,

Graphene research and applications

Using the minima hopping global geometry optimization method on the density functional potential energy surface we show that the energy landscape of boron clusters is glasslike. Larger boron clusters have many structures which are lower in energy than the cages. This is in contrast to carbon and boron nitride systems which can be clearly identified as structure seekers. The differences in the potential energy landscape explain why carbon and boron nitride systems are found in nature whereas pure boron fullerenes have not been found. We thus present a methodology which can make predictions on the feasibility of the synthesis of new nanostructures.