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Substrate-induced phase transitions in two-dimensional colloidal systems

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Trends in Colloid and Interface Science XV

Part of the book series: Progress in Colloid and Polymer Science ((PROGCOLLOID,volume 118))

Abstract

We study the phase behavior of a 2D colloidal system in the presence of an external periodic 1D potential. As colloidal suspension we use an aqueous suspension of superparamagnetic spheres with a diameter of 4.5 μm. The periodic 1D potential is fabricated by evaporation of thin magnetic nickel lines onto a glass substrate, which is afterwards covered with a protective poly(methyl methacrylate) layer. When the phase behavior of the colloidal system is investigated as a function of the applied external magnetic field, we observe a promoting effect of the underlying periodic 1D potential to the crystallization of the 2D colloidal system.

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© 2001 Springer-Verlag

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Mangold, K., Bubeck, R., Leiderer, P., Bechinger, C. (2001). Substrate-induced phase transitions in two-dimensional colloidal systems. In: Koutsoukos, P.G. (eds) Trends in Colloid and Interface Science XV. Progress in Colloid and Polymer Science, vol 118. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45725-9_17

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  • DOI: https://doi.org/10.1007/3-540-45725-9_17

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-42241-9

  • Online ISBN: 978-3-540-45725-1

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