Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/5091
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dc.contributorDepartment of Applied Physics-
dc.creatorLam, CH-
dc.date.accessioned2014-12-11T08:28:51Z-
dc.date.available2014-12-11T08:28:51Z-
dc.identifier.issn1539-3755-
dc.identifier.urihttp://hdl.handle.net/10397/5091-
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_US
dc.rightsPhysical Review E © 2010 The American Physical Society. The Journal's web site is located at http://pre.aps.org/en_US
dc.subjectDeformationen_US
dc.subjectElemental semiconductorsen_US
dc.subjectGermaniumen_US
dc.subjectIsland structureen_US
dc.subjectMonte Carlo methodsen_US
dc.subjectNucleationen_US
dc.subjectSemiconductor epitaxial layersen_US
dc.subjectSemiconductor growthen_US
dc.titleKinetic Monte Carlo simulation of faceted islands in heteroepitaxy using a multistate lattice modelen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage1-
dc.identifier.epage8-
dc.identifier.volume81-
dc.identifier.issue2-
dc.identifier.doi10.1103/PhysRevE.81.021607-
dcterms.abstractA solid-on-solid model is generalized to study the formation of Ge pyramid islands bounded by (105) facets on Si(100) substrates in two dimensions. Each atomic column is not only characterized by the local surface height but also by two deformation state variables dictating the local surface tilt and vertical extension. These local deformations phenomenologically model surface reconstructions in (105) facets and enable the formation of islands which better resemble faceted pyramids. We apply the model to study a kinetic limited growth regime. Transitions from stepped mounds into faceted islands under deposition conditions are demonstrated. It is shown that a significantly reduced growth rate after faceting leads to a continuous nucleation of new islands until overcrowding occurs. The island size distribution is now dominated by fluctuations in the initial island size during faceting and the increased diversity in the ages of the islands. This multistate model may find applications in kinetic simulations of other nanostructures or nanoclusters involving arbitrary high-index surfaces.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationPhysical review. E, Statistical, nonlinear, and soft matter physics, Feb. 2010, v. 81, no. 2, 021607, p. 1-8-
dcterms.isPartOfPhysical review. E, Statistical, nonlinear, and soft matter physics-
dcterms.issued2010-02-23-
dc.identifier.isiWOS:000275053700063-
dc.identifier.eissn1550-2376-
dc.identifier.rosgroupidr45962-
dc.description.ros2009-2010 > Academic research: refereed > Publication in refereed journal-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
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