DC Field | Value | Language |
---|---|---|
dc.contributor.author | Han, Y | - |
dc.contributor.author | Lu, GH | - |
dc.contributor.author | Lee, BJ | - |
dc.contributor.author | Liu, F | - |
dc.date.accessioned | 2021-12-04T15:22:15Z | - |
dc.date.available | 2021-12-04T15:22:15Z | - |
dc.date.created | 2009-02-28 | - |
dc.date.issued | 2008-07-01 | - |
dc.identifier.issn | 0039-6028 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/108084 | - |
dc.description.abstract | We obtain important energy parameters for understanding growth kinetics of a faceted Pb mesa. Specifically, extensive calculations of diffusion barriers are performed for a Pb adatom: (i) on a flat Pb(111) or Pb(001) surface; (ii) crossing a single A- or B-step edge on Pb(111) surface; (iii) crossing a facet-facet edge between Pb(111) facet and Pb(001) facet, or between Pb(111) facet and Pb(11 (1) over bar) facet; (iv) crossing a facet-step joint between Pb(001) facet and A-step, or between Pb(11 (1) over bar) facet and B-step, using a modified embedded atom method. We investigate two different diffusion modes: direct hopping of an adatom, and exchange mechanism between an adatom and substrate atom(s). Direct hopping diffusion is more favorable over exchange mechanism for an adatom on a flat (111) or (001) surface. Diffusion crossing A-step edge favors direct hopping, while diffusion crossing B-step edge favors exchange mechanism. For facet-facet or facet-step diffusion, the exchange mechanism is always favorable over direct hopping. The diffusion barriers obtained here have been used to reasonably explain the intriguing kinetic growth of a Pb mesa in recent experiments. In addition, we also discuss low-index planes of Pb((1) over bar 10) crystallographic zone related to the choices of sidewalls in the formation of a Pb mesa by calculating corresponding surface free energies. (c) 2008 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.relation.isPartOf | SURFACE SCIENCE | - |
dc.subject | Pb mesa growth | - |
dc.subject | surface diffusion barrier | - |
dc.subject | surface free energy | - |
dc.subject | modified embedded atom method | - |
dc.subject | EMBEDDED-ATOM-METHOD | - |
dc.subject | SELF-DIFFUSION | - |
dc.subject | SADDLE-POINTS | - |
dc.subject | RELAXATIONS | - |
dc.subject | TEMPERATURE | - |
dc.subject | IMPURITIES | - |
dc.subject | POTENTIALS | - |
dc.subject | PB/SI(111) | - |
dc.subject | MECHANISM | - |
dc.subject | KINETICS | - |
dc.title | Flat-surface, step-edge, facet-facet, and facet-step diffusion barriers in growth of a Pb mesa | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.susc.2008.05.009 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | SURFACE SCIENCE, v.602, no.13, pp.2284 - 2294 | - |
dc.identifier.wosid | 000257837500025 | - |
dc.citation.endPage | 2294 | - |
dc.citation.number | 13 | - |
dc.citation.startPage | 2284 | - |
dc.citation.title | SURFACE SCIENCE | - |
dc.citation.volume | 602 | - |
dc.contributor.affiliatedAuthor | Lee, BJ | - |
dc.identifier.scopusid | 2-s2.0-45849146535 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | EMBEDDED-ATOM-METHOD | - |
dc.subject.keywordPlus | SELF-DIFFUSION | - |
dc.subject.keywordPlus | RELAXATIONS | - |
dc.subject.keywordPlus | POTENTIALS | - |
dc.subject.keywordPlus | KINETICS | - |
dc.subject.keywordPlus | CRYSTAL | - |
dc.subject.keywordPlus | ADATOM | - |
dc.subject.keywordAuthor | Pb mesa growth | - |
dc.subject.keywordAuthor | surface diffusion barrier | - |
dc.subject.keywordAuthor | surface free energy | - |
dc.subject.keywordAuthor | modified embedded atom method | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Physics | - |
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