Some properties of the structure factor S ( q ) in two-dimensional classical liquids near freezing
2010; Taylor & Francis; Volume: 48; Issue: 3 Linguagem: Inglês
10.1080/00319100903582108
ISSN1029-0451
Autores Tópico(s)Material Dynamics and Properties
ResumoAbstract We explore general properties of the main peak of the structure factor S(q) near the melting temperature T melt in liquids confined in two dimensions, especially for the one component plasma model and for monatomic liquids interacting through inverse twelfth-power potentials. Those properties are the height of the peak, S(q m), where q m is the position of maximum in the peak, and the ratio between S(q m) and q m/Δq, where 2Δq is the width of the peak. The results obtained are then compared with those for similar systems in three dimensions. Other magnitude that we use to compare two-dimensional and three-dimensional simple liquids is r m/Δr, where r m is the position of the main peak in the pair distribution function g(r) and 2Δr is the width of that peak. Keywords: classical liquidsfreezingtwo-dimensional systemsstructure factor Acknowledgements This work was supported by MEC of Spain (Grant MAT2005-06483-C03-01) and Junta de Castilla y Leon (Grants VA017A08 and GR23). N.H. March wishes to acknowledge the hospitality of Departamento de Física Teórica, Atómica y Optica, University of Valladolid. He also thanks Professors D. Lamoen and C. Van Alsenoy for partial finantial support from the University of Antwerp via BOF–NOI.
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