Nonergodicity transitions in colloidal suspensions with attractive interactions

Bergenholtz, Johan; Fuchs, Matthias

Nonergodicity transitions in colloidal suspensions with attractive interactions

Files

p5706_1.pdf(184.78 KB)

Date

1999

Authors

Bergenholtz, Johan

Fuchs, Matthias

Publication type

Journal article

Published in

Physical Review E ; 59 (1999), 5. - pp. 5706-5715

Abstract

Colloidal gel and glass transitions are investigated using the idealized mode coupling theory (MCT) for model systems characterized by short-range attractive interactions. Results are presented for adhesive hard sphere and hard core attractive Yukawa systems. According to MCT, the former system shows a critical glass transition concentration that increases significantly with introduction of a weak attraction. For the latter attractive Yukawa system, MCT predicts low temperature nonergodic states that extend to the critical and subcritical region. Several features of the MCT nonergodicity transition in this system agree qualitatively with experimental observations on the colloidal gel transition, suggesting that the gel transition is caused by a low temperature extension of the glass transition. The range of the attraction is shown to govern the way the glass transition line traverses the phase diagram relative to the critical point, analogous to findings for the fluid-solid freezing transition.

Subject (DDC)

530 Physics

Cite This

ISO 690

BERGENHOLTZ, Johan, Matthias FUCHS, 1999. Nonergodicity transitions in colloidal suspensions with attractive interactions. In: Physical Review E. 59(5), pp. 5706-5715. Available under: doi: 10.1103/PhysRevE.59.5706

BibTex

@article{Bergenholtz1999Noner-9447,
  year={1999},
  doi={10.1103/PhysRevE.59.5706},
  title={Nonergodicity transitions in colloidal suspensions with attractive interactions},
  number={5},
  volume={59},
  journal={Physical Review E},
  pages={5706--5715},
  author={Bergenholtz, Johan and Fuchs, Matthias}
}

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