{ "id": "cond-mat/9911460", "version": "v2", "published": "1999-11-29T11:40:40.000Z", "updated": "2001-02-21T14:59:25.000Z", "title": "Enhancement of structural rearrangement in glassy systems under shear flow", "authors": [ "F. Corberi", "G. Gonnella", "D. Suppa" ], "comment": "8 pages, 3 figures, changed content Pacs{64}{70.Pf}{Glass transitions} Pacs{05}{70.Ln}{Non-equilibrium thermodynamics, irreversible processes} Pacs{83}{50.Ax}{Steady shear flows}", "doi": "10.1209/epl/i2000-00441-9", "categories": [ "cond-mat.stat-mech" ], "abstract": "We extend the analysis of the mean field schematic model recently introduced for the description of glass forming liquids to the case of a supercooled fluid subjected to a shear flow of rate $\\gamma$. After quenching the system to a low temperature $T$, a slow glassy regime is observed before stationarity is achieved at the characteristic time $\\tau_g$. $\\tau_g$ is of the order of the usual equilibration time without shear $\\tau_g^o$ for weak shear, $\\gamma \\tau_g ^o<1$. For larger shear, $\\gamma \\tau_g ^o>1$, local rearrangement of dense regions is instead enhanced by the flow, and $\\tau_g \\simeq 1/(T\\gamma)$.", "revisions": [ { "version": "v2", "updated": "2001-02-21T14:59:25.000Z" } ], "analyses": { "keywords": [ "shear flow", "glassy systems", "structural rearrangement", "enhancement", "mean field schematic model" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable" } } }