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Deutsche Physikalische Gessellschaft IOP Institute of Physics

Video microscopy and micromechanics studies of one- and two-dimensional colloidal crystals

Focus on Brownian Motion and Diffusion in the 21st Century

Alexandros Pertsinidis and Xinsheng Sean Ling

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Part of Focus on Brownian Motion and Diffusion in the 21st Century

Colloidal suspension of monodispersed charged polystyrene microspheres provides an excellent experimental system for a study of condensed matter physics. Here we report a series of experiments using video microscopy to study the structure and dynamics of colloidal matter. In the first set of experiments, we give a clear demonstration of how thermal fluctuations destroy positional order in one dimension. The second set of experiments is related to the micromechanics of a colloidal solid.


PACS

82.70.Dd Colloids

81.40.Lm Deformation, plasticity, and creep

82.70.Kj Emulsions and suspensions

62.20.F- Deformation and plasticity

61.72.Hh Indirect evidence of dislocations and other defects (resistivity, slip, creep, strains, internal friction, EPR, NMR, etc.)

Subjects

Soft matter, liquids and polymers

Condensed matter: structural, mechanical & thermal

Chemical physics and physical chemistry

Dates

Issue 1 (January 2005)

Received 7 September 2004

Published 31 January 2005



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