Diffusion microrheology of ferrofluids

Author:

Peredo-Ortíz R.,Hernández-Contreras M.

Abstract

We provide a statistical mechanics approach to study the linear microrheology of thermally equilibrated and homogeneous ferrofluids. Theexpressions for the elastic and loss moduli depend on the bulk microstructure of the magnetic fluid determined by the structure factor of thesuspension of magnetic particles. The comparison of the predicted microrheology with computer simulations confirms that as a function ofrelaxation frequency of thermal fluctuations of the particle concentration both theory and simulations have the same trends. At very shortfrequencies the viscous modulus relates to the translational and rotational self-diffusion coefficients of a ferro-particle.

Publisher

Sociedad Mexicana de Fisica A C

Subject

General Physics and Astronomy,Education

Cited by 5 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Magnetic susceptibility of ferrofluids determined from diffusion coefficient of a tracer;Revista Mexicana de Física;2022-04-22

2. Magnetic viscoelastic behavior in a colloidal ferrofluid;The Journal of Chemical Physics;2020-11-14

3. Equilibrium Structures and Stationary Patterns on Magnetic Colloidal Fluids;Pattern Formation and Stability in Magnetic Colloids;2020-01-08

4. Structure factor of colloidal magnetic fluid;Journal of Physics: Conference Series;2019-06-01

5. Viscoelastic moduli of ferrofluid;Journal of Physics: Conference Series;2019-06-01

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