Colloidal Structures from Unexpected Interactions: From Dielectric Many-Body Effects to Non-Equilibrium Phase Behaviour

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• Erik Luijten, Northwestern University
• Wednesday 06 May 2015, 16:00-17:00
• Dept. of Chemistry, Wolfson Lecture Theatre.

If you have a question about this talk, please contact Lucy Colwell.

Suspensions of colloidal particles are widely studied as prototypical systems displaying self-assembly. Here I demonstrate how induced dielectric effects, realized through coatings and controlled by external fields, result in unexpected and until now unexplored aggregation and phase behavior. These observations also reveal striking connections between colloidal self-assembly and collective dynamics, and between dynamic behavior and classical thermodynamics.

[1] J. Yan, M. Bloom, S.C. Bae, E. Luijten and S. Granick, /Nature/ 491, 578 (2012). [2] K. Barros, D. Sinkovits and E. Luijten, /J. Chem. Phys./ 140, 064903 (2014). [3] K. Barros and E. Luijten, /Phys. Rev. Lett./ 113, 017801 (2014).

This talk is part of the Theory - Chemistry Research Interest Group series.

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