{ "id": "cond-mat/0207404", "version": "v1", "published": "2002-07-16T17:29:52.000Z", "updated": "2002-07-16T17:29:52.000Z", "title": "The process of irreversible nucleation in multilayer growth. II. Exact results in one and two dimensions", "authors": [ "Paolo Politi", "Claudio Castellano" ], "comment": "22 pages, 10 figures. To appear in Phys. Rev. E", "journal": "Phys. Rev. E 66, 031606 (2002)", "doi": "10.1103/PhysRevE.66.031606", "categories": [ "cond-mat.stat-mech" ], "abstract": "We study irreversible dimer nucleation on top of terraces during epitaxial growth in one and two dimensions, for all values of the step-edge barrier. The problem is solved exactly by transforming it into a first passage problem for a random walker in a higher-dimensional space. The spatial distribution of nucleation events is shown to differ markedly from the mean-field estimate except in the limit of very weak step-edge barriers. The nucleation rate is computed exactly, including numerical prefactors.", "revisions": [ { "version": "v1", "updated": "2002-07-16T17:29:52.000Z" } ], "analyses": { "keywords": [ "exact results", "multilayer growth", "irreversible nucleation", "dimensions", "weak step-edge barriers" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. E" }, "note": { "typesetting": "TeX", "pages": 22, "language": "en", "license": "arXiv", "status": "editable" } } }