Phonon dispersions of cluster crystals

We analyze the ground states and the elementary collective excitations (phonons) of a class of systems, which form cluster crystals in the absence of attractions. Whereas the regime of moderate-to-high-temperatures in the phase diagram has been analyzed in detail by means of density functional consi...

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Veröffentlicht in:	arXiv.org 2010-08
Hauptverfasser:	Neuhaus, Tim, Likos, Christos N
Format:	Artikel
Sprache:	eng
Schlagworte:	Anharmonicity Clusters Critical point Crystal lattices Free energy Lattice vibration Occupancy Phase diagrams Phase transitions Phonons Physics - Computational Physics Physics - Soft Condensed Matter
Online-Zugang:	Volltext
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