Year: 2006
Type: article
Abstract: We demonstrate that the law of the rectilinear coexistence diameter in two-dimensional mixtures of nonspherical colloids and nonadsorbing polymers is violated. Upon approach to the critical point, the diameter shows logarithmic singular behavior governed by a term t ln t, with t the relative distance from the critical point. No sign of a term t2beta could be detected, with beta the critical exponent of the order parameter, indicating a very weak or absent Yang-Yang anomaly. Our analysis thus reveals that nonspherical particle shape alone is not sufficient for the formation of a pronounced Yang-Yang anomaly in the critical behavior of fluids.
Source: Physical Review E
Authors: R. L. C. Vink, H. H. Wensink
Institution: Heinrich Heine University Düsseldorf
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2003705909