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arXiv · 1602.05976

Discontinuous Thinning in Active Microrheology of Soft Complex Matter

R. Wulfert·U. Seifert·T. Speck
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Abstract

Employing theory and numerical simulations, we demonstrate discontinuous force thinning due to the motion of an external probe in a host medium, which we approximate as structureless. When the driving of the probe exceeds a critical force, the microviscosity of the medium drops abruptly by about an order of magnitude. This phenomenon occurs for strong attractive interactions between probe and a sufficiently dense host medium.

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R. Wulfert, U. Seifert, T. Speck. 2016-02-18. Discontinuous Thinning in Active Microrheology of Soft Complex Matter. https://doi.org/10.1103/physreve.94.062610

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