Critical Casimir Forces between Spherical Particles in Fluids

Authors

Andreas Hanke, The University of Texas Rio Grande Valley
F. Schlesener
E. Eisenriegler
S. Dietrich

Document Type

Article

Publication Date

1998

Abstract

Long-ranged correlations in a fluid close to its critical point Tc cause distinct forces between immersed colloidal particles and the container walls. We calculate such a force and its temperature dependence for the generic case of a spherical particle located at a distance D from a planar wall and find that the force attains a maximum at a temperature Tmax(D) above Tc, which facilitates quantitative experimental tests. The corresponding effective pair interaction between the colloidal particles themselves, potentially leading to aggregation, is also discussed.

Comments

©1998 American Physical Society. Original published version available at https://doi.org/10.1103/PhysRevLett.81.1885

Recommended Citation

Hanke, A., et al. “Critical Casimir Forces between Spherical Particles in Fluids.” Physical Review Letters, vol. 81, no. 9, American Physical Society, Aug. 1998, pp. 1885–88, doi:10.1103/PhysRevLett.81.1885.

Publication Title

Physical Review Letters

DOI

10.1103/PhysRevLett.81.1885