Coexistence of hexatic and isotropic phases in two-dimensional Yukawa systems

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dc.creatorQi, Wei-Kai
dc.creatorQin, Shao-Meng
dc.creatorZhao, Xiao-Ying
dc.creatorChen, Yong
dc.date2007-09-13
dc.date2008-09-03
dc.date.accessioned2026-07-07T09:59:49Z
dc.date.available2026-07-07T09:59:49Z
dc.descriptionWe have performed Brownian dynamics simulations on melting of two-dimensional colloidal crystal in which particles interact with Yukawa potential. The pair correlation function and bond-orientational correlation function was calculated in the Yukawa system. An algebraic decay of the bond orientational correlation function was observed. By ruling out the coexistence region, only a unstable hexatic phase was found in the Yukawa systems. But our work shows that the melting of the Yukawa systems is a two-stage melting not consist with the KTHNY theory and the isotropic liquid and the hexatic phase coexistence region was found. Also we have studied point defects in two-dimensional Yukawa systems.
dc.description9 pages, 8 figures. any comments are welcome
dc.identifierhttps://arxiv.org/abs/0709.2035
dc.identifierhttp://arxiv.org/abs/0709.2035
dc.identifierJ. Phys.: Condens. Matter 20, 245102 (2008)
dc.identifierdoi:10.1088/0953-8984/20/24/245102
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/168158
dc.subjectSoft Condensed Matter
dc.subjectStatistical Mechanics
dc.titleCoexistence of hexatic and isotropic phases in two-dimensional Yukawa systems
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