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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Online ISBN: 978-3-540-45725-1
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