TU Darmstadt / ULB / TUbiblio

Stacking-fault nucleation on {I}r(111)

Busse, C. ; Polop, C. ; Muller, M. ; Albe, K. ; Linke, U. ; Michely, T. (2003)
Stacking-fault nucleation on {I}r(111).
In: Phys. Rev. Lett., 91 (5)
doi: 10.1103/PhysRevLett.91.056103
Article, Bibliographie

Abstract

Variable temperature scanning tunneling microscopy experiments reveal that in Ir(111) homoepitaxy islands nucleate and grow both in the regular fcc stacking and in the faulted hcp stacking. Analysis of this effect in dependence on deposition temperature leads to an atomistic model of stacking-fault formation: The large, metastable stacking-fault islands grow by sufficiently fast addition of adatoms to small mobile adatom clusters which occupy in thermal equilibrium the hcp sites with a significant probability. Using parameters derived independently by field ion microscopy, the model accurately describes the results for Ir(111) and is expected to be valid also for other surfaces.

Item Type: Article
Erschienen: 2003
Creators: Busse, C. ; Polop, C. ; Muller, M. ; Albe, K. ; Linke, U. ; Michely, T.
Type of entry: Bibliographie
Title: Stacking-fault nucleation on {I}r(111)
Language: English
Date: 31 July 2003
Publisher: American Physical Society
Journal or Publication Title: Phys. Rev. Lett.
Volume of the journal: 91
Issue Number: 5
DOI: 10.1103/PhysRevLett.91.056103
URL / URN: http://prl.aps.org/abstract/PRL/v91/i5/e056103
Abstract:

Variable temperature scanning tunneling microscopy experiments reveal that in Ir(111) homoepitaxy islands nucleate and grow both in the regular fcc stacking and in the faulted hcp stacking. Analysis of this effect in dependence on deposition temperature leads to an atomistic model of stacking-fault formation: The large, metastable stacking-fault islands grow by sufficiently fast addition of adatoms to small mobile adatom clusters which occupy in thermal equilibrium the hcp sites with a significant probability. Using parameters derived independently by field ion microscopy, the model accurately describes the results for Ir(111) and is expected to be valid also for other surfaces.

Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Materials Modelling
Date Deposited: 28 Feb 2012 15:20
Last Modified: 18 Jul 2018 13:43
PPN:
Funders: This work was supported by the Deutsche Forschungsgemeinschaft via the project ‘‘Atomare Prozesse beim homoepitaktischen Schichtwachstum unter extremen Nichtgleichgewichtsbedingungen.’’
Export:
Suche nach Titel in: TUfind oder in Google
Send an inquiry Send an inquiry

Options (only for editors)
Show editorial Details Show editorial Details