{ "id": "1703.04494", "version": "v1", "published": "2017-03-13T17:21:04.000Z", "updated": "2017-03-13T17:21:04.000Z", "title": "Thermal Conductivity of Glass-Forming Liquids", "authors": [ "Pranab Jyoti Bhuyan", "Rituparno Mandal", "Pinaki Chaudhuri", "Abhishek Dhar", "Chandan Dasgupta" ], "comment": "10 pages, 14 figures", "categories": [ "cond-mat.dis-nn" ], "abstract": "Thermal conductivity of a model glass-forming system in the liquid and glass states is studied using extensive numerical simulations. We show that near the glass transition temperture, where the structural relaxation time becomes very long, the measured thermal conductivity decreases with increasing age. Secondly the thermal conductivity of the disordered solid obtained at low temperatures depends on the cooling rate with which it was prepared, with lower cooling rates leading to lower thermal conductivity. Our analysis links this decrease of the thermal conductivity with increased exploration of lower-energy inherent structures of the underlying potential energy landscape. Further we show that the lowering of conductivity for lower-energy inherent structures is related to the high frequency harmonic modes associated with the inherent structure being less extended.", "revisions": [ { "version": "v1", "updated": "2017-03-13T17:21:04.000Z" } ], "analyses": { "keywords": [ "glass-forming liquids", "lower-energy inherent structures", "high frequency harmonic modes", "potential energy landscape", "lower thermal conductivity" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable" } } }