Weakly anisotropic and string fluid phases in magnetorheological systems

Strongly coupled magnetorheological (MR) systems differ from regular simple or complex fluids since the effective interparticle interaction is controlled by external fields and thus provides a tunable anisotropic contribution. This, in turn, causes remarkable diversified phase diagrams of MR-systems. Our analysis of fluid–fluid transitions is based on a modified Ornstein–Zernike (OZ) equation which allows us to calculate structural properties of magnetorheological fluids with anisotropic (dipolar) interactions. The results are compared with MC simulations.

Research highlights► We carried out an analysis of fluid-fluid transitions in a magnetorheological system. ► The analysis is based on a modified Ornstein- Zernike equation. ► This can be used to calculate structural properties of magnetorheological fluids with anisotropic interactions. ► Comparisons between the present analysis and Monte Carlo simulations show that two results are agreed well with each other.