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Criticality and phase separation in a two-dimensional binary colloidal fluid induced by the solvent critical behavior

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journal contribution
posted on 03.07.2013, 14:09 by O. Zvyagolskaya, Andrew Archer, C. Bechinger
We present an experimental and theoretical study of the phase behavior of a binary mixture of colloids with opposite adsorption preferences in a critical solvent. As a result of the attractive and repulsive critical Casimir forces, the critical fluctuations of the solvent lead to a further critical point in the colloidal system, i.e. to a critical colloidal-liquid–colloidal-liquid demixing phase transition which is controlled by the solvent temperature. Our experimental findings are in good agreement with calculations based on a simple approximation for the free energy of the system.

History

School

  • Science

Department

  • Mathematical Sciences

Citation

ZVYAGOLSKAYA, O., ARCHER, A.J. and BECHINGER, C., 2011. Criticality and phase separation in a two-dimensional binary colloidal fluid induced by the solvent critical behavior. EPL, 96 (2), 28005, 5 pp.

Publisher

IOPscience © EPLA

Version

AM (Accepted Manuscript)

Publication date

2011

Notes

This article was published in the journal, EPL [IOPscience © EPLA] and the definitive version is available at: http://dx.doi.org/10.1209/0295-5075/96/28005

ISSN

0295-5075

Language

en

Exports

Loughborough Publications

Keywords

Exports