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Liquid-liquid phase coexistence in gold clusters: 2D or not 2D?
Phys Rev Lett ; 98(1): 015701, 2007 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-17358487
ABSTRACT
The thermodynamics of gold cluster anions (AuN-, N=11,...,14) is investigated using quantum molecular dynamics. Our simulations suggest that AuN- may exhibit a novel, freestanding planar liquid phase which dynamically coexists with a normal three-dimensional liquid. Upon cooling with experimentally realizable cooling rates, the entropy-favored three-dimensional liquid clusters often supercool and solidify into the "wrong" dimensionality. This indicates that experimental validation of theoretically predicted AuN- ground states might be more complicated than hitherto expected.

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Coleções: Bases de dados internacionais Base de dados: MEDLINE Aspecto clínico: Predição / Prognóstico Idioma: Inglês Revista: Phys Rev Lett Ano de publicação: 2007 Tipo de documento: Artigo País de afiliação: Alemanha