Epitaxial Crystal Growth of Charged Colloids

Hoogenboom, J. P. and Yethiraj, Anand and van Langen-Suurling, A. K. and Romijn, J. and van Blaaderen, A. (2002) Epitaxial Crystal Growth of Charged Colloids. Physical Review Letters, 89 (25). ISSN 1079-7114

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A pattern of repulsive, charged lines is shown to direct three-dimensional (3D) crystallization in a system of long-range repulsive, density-matched colloids. At volume fractions where the bulk phase behavior leads to bcc crystallization, the 1D template was found to induce formation of a metastable fcc crystal. The bcc crystals were oriented with the (100) or the (110) plane, with twofold twinning, parallel to the template. The template further induced prefreezing of the (100) plane. At a large mismatch between template and interparticle spacing, 1D strings form in the surface layer of a 3D crystal.

Item Type: Article
URI: http://research.library.mun.ca/id/eprint/8062
Item ID: 8062
Department(s): Science, Faculty of > Physics and Physical Oceanography
Date: 16 December 2002
Date Type: Publication
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