Title: Towards frustration of freezing transition in a binary hard-disk mixture
Author(s):

	A. Huerta (Facultad de Física e Inteligencia Artificial, Depto. de Física, Universidad Veracruzana, Circuito Gonzálo Aguirre Beltrán s/n Zona Universitaria Xalapa, Ver. C.P. 91000, México),
	V. Carrasco-Fadanelli (Facultad de Física e Inteligencia Artificial, Depto. de Física, Universidad Veracruzana, Circuito Gonzálo Aguirre Beltrán s/n Zona Universitaria Xalapa, Ver. C.P. 91000, México),
	A. Trokhymchuk (Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, Department of the Theory of Solutions, 1 Svientsitskii St., 79011 Lviv, Ukraine)

The freezing mechanism, recently suggested for a monodisperse hard-disk fluid [Huerta et al, Phys. Rev. E, 2006, 74, 061106] is extended here to an equimolar binary hard-disk mixtures. We are showing that for diameter ratios, smaller than 1.15 the global orientational order parameter of the binary mixture behaves like in the case of a monodisperse fluid. Namely, by increasing the disk number density there is a tendency to form a crystalline-like phase. However, for diameter ratios larger than 1.15 the binary mixtures behave like a disordered fluid. We use some of the structural and thermodynamic properties to compare and discuss the behavior as a function of diameter ratio and packing fraction.

Key words: hard-disk fluid, freezing transitions, binary equimolar hard-disk mixture
PACS: 64.60.Fr, 68.35.Rh

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