High-resolution LEED profile analysis and diffusion barrier estimation for submonolayer homoepitaxy of Ag/Ag(100)

dc.contributor.author Thiel, Patricia
dc.contributor.author Bardotti, L.
dc.contributor.author Stoldt, C.
dc.contributor.author Jenks, Cynthia
dc.contributor.author Bartelt, M.
dc.contributor.author Evans, James
dc.contributor.author Evans, James
dc.contributor.author Thiel, Patricia
dc.contributor.department Ames Laboratory
dc.contributor.department Mathematics
dc.contributor.department Chemistry
dc.date 2018-02-13T12:55:22.000
dc.date.accessioned 2020-06-30T01:21:47Z
dc.date.available 2020-06-30T01:21:47Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 1998
dc.date.embargo 2013-06-27
dc.date.issued 1998-05-15
dc.description.abstract <p>We present a high-resolution low-energy electron diffraction study of two-dimensional island distributions formed by depositing 0.3 ML of Ag on Ag(100). The substrate temperature ranged between 170 and 295 K. From the ring structure or “splitting” of the diffraction profiles, we determine the behavior of the spatial correlation length characterizing the island distribution. The precise relationship between this correlation length and the mean island separation is also determined via an analysis of kinematic diffraction from island distributions in a realistic model of nucleation and growth. Resulting estimates of this separation are consistent with those based on results from a previous scanning tunneling microscopy study at 295 K. From the Arrhenius behavior of the correlation length, we estimate a terrace diffusion barrier for Ag on Ag(100) of 0.40 ±0.04eV, with a vibrational prefactor of about 3×1013s-1.</p>
dc.description.comments <p>This article is from <em>Physical Review B</em> 57, no. 19 (1998): 12544–12549, doi:<a href="http://dx.doi.org/10.1103/PhysRevB.57.12544" target="_blank">10.1103/PhysRevB.57.12544</a>.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/chem_pubs/65/
dc.identifier.articleid 1064
dc.identifier.contextkey 4263397
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath chem_pubs/65
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/15128
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/chem_pubs/65/1998_ThielPA_HighResolutionLEED.pdf|||Sat Jan 15 01:23:19 UTC 2022
dc.source.uri 10.1103/PhysRevB.57.12544
dc.subject.disciplines Mathematics
dc.subject.disciplines Physical Chemistry
dc.subject.keywords Institute of Physical Research and Technology
dc.subject.keywords Ames Laboratory
dc.subject.keywords Mathematics
dc.title High-resolution LEED profile analysis and diffusion barrier estimation for submonolayer homoepitaxy of Ag/Ag(100)
dc.type article
dc.type.genre article
dspace.entity.type Publication
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