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2013 | OriginalPaper | Chapter

Crystal-Liquid Transition in Binary Mixtures of Charged Colloidal Particles

Authors : Catalina Haro-Pérez, Gualberto Ojeda-Mendoza, Carlos A. Vargas, Eduardo Basurto-Uribe, Luis F. Rojas-Ochoa

Published in: Fluid Dynamics in Physics, Engineering and Environmental Applications

Publisher: Springer Berlin Heidelberg

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Abstract

In this work we present experimental results on the melting of binary colloidal crystals composed by two different sized charged colloidal particles. As the number fraction of the smallest particles is increased, we observe a crystal-liquid transition. The melting line is characterized by studying the structural and dynamic properties of the colloidal suspensions by means of cross-correlation dynamic light scattering. The initial crystal structure consists of a body centered cubic lattice and after reaching a certain concentration of small particles, the system melts. At the melting point the resulting structure measured by static light scattering represents that of a strongly correlated fluid.

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Title: Crystal-Liquid Transition in Binary Mixtures of Charged Colloidal Particles
Authors: Catalina Haro-Pérez
Gualberto Ojeda-Mendoza
Carlos A. Vargas
Eduardo Basurto-Uribe
Luis F. Rojas-Ochoa
Publisher: Springer Berlin Heidelberg
Book: Fluid Dynamics in Physics, Engineering and Environmental Applications
Print ISBN: 978-3-642-27722-1

Electronic ISBN: 978-3-642-27723-8

Copyright Year: 2013
DOI: https://doi.org/10.1007/978-3-642-27723-8_20