{ "id": "1010.1411", "version": "v1", "published": "2010-10-07T12:20:45.000Z", "updated": "2010-10-07T12:20:45.000Z", "title": "Shear-induced criticality near a liquid-solid transition of colloidal suspensions", "authors": [ "Masamichi J. Miyama", "Shin-ichi Sasa" ], "comment": "4 pages, 8 figures", "journal": "Phys. Rev. E 83, 020401(R) (2011)", "doi": "10.1103/PhysRevE.83.020401", "categories": [ "cond-mat.stat-mech", "cond-mat.soft" ], "abstract": "We investigate colloidal suspensions under shear flow through numerical experiments. By measuring the time-correlation function of a bond-orientational order parameter, we find a divergent time scale near a transition point from a disordered fluid phase to an ordered fluid phase, where the order is characterized by a nonzero value of the bond-orientational order parameter. We also present a phase diagram in the $(\\rho, \\dot{\\gamma}^{\\mathrm{ex}})$ plane, where $\\rho$ is the density of the colloidal particles and $\\dot{\\gamma}^{\\mathrm{ex}}$ is the shear rate of the solvent. The transition line in the phase diagram terminates at the equilibrium transition point, while a critical region near the transition line vanishes continuously as $\\dot{\\gamma}^{\\mathrm{ex}} \\rightarrow 0$.", "revisions": [ { "version": "v1", "updated": "2010-10-07T12:20:45.000Z" } ], "analyses": { "subjects": [ "82.70.-y", "64.60.Cn", "83.10.Mj", "83.50.Ax" ], "keywords": [ "colloidal suspensions", "liquid-solid transition", "shear-induced criticality", "bond-orientational order parameter", "phase diagram terminates" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review E", "year": 2011, "month": "Feb", "volume": 83, "number": 2, "pages": "020401" }, "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011PhRvE..83b0401M" } } }