English

Dynamic Analysis of Confined Ionic Liquids and Ionic Magnetic Fluids: Highlighting Long Range Elastic Interactions

Soft Condensed Matter 2022-07-29 v1

Abstract

By reinforcing the interaction energy of the liquid with respect to the surface using total wetting boundary conditions, the response of liquids to mechanical shear stress is stronger and exhibits at sub-millimeter scale elastic properties. This study extends here to liquids with strong electrostatic interactions such as ionic liquids and paramagnetic liquids. We show that it is also possible to identify and measure a non-zero low-frequency shear elasticity at sub-millimeter scale. The observation of mesoscopic elastic properties in liquids generally considered as viscous away from any phase transition and the absence of extended structuring confirm the relevance of considering elastic interactions as contributing to collective effects under external electric or magnetic field.

Keywords

Cite

@article{arxiv.2207.13925,
  title  = {Dynamic Analysis of Confined Ionic Liquids and Ionic Magnetic Fluids: Highlighting Long Range Elastic Interactions},
  author = {Eni Kume and Peter Dunne and Nicolas Martin and Patrick Baroni and Laurence Noirez},
  journal= {arXiv preprint arXiv:2207.13925},
  year   = {2022}
}