Clustered, Terraced And Mixed Surface Phases Of The Al70Pd21Mn9 Quasicrystal

dc.contributor.author Ledieu, J.
dc.contributor.author Lograsso, Thomas
dc.contributor.author Munz, A.
dc.contributor.author Parker, T.
dc.contributor.author McGrath, R.
dc.contributor.author Diehl, R.
dc.contributor.author Delaney, Dwight
dc.contributor.author Lograsso, Thomas
dc.contributor.department Ames Laboratory
dc.date 2018-02-13T15:16:19.000
dc.date.accessioned 2020-06-29T23:17:44Z
dc.date.available 2020-06-29T23:17:44Z
dc.date.copyright Fri Jan 01 00:00:00 UTC 1999
dc.date.embargo 2013-09-25
dc.date.issued 1998
dc.description.abstract <p>The five-fold surface of the Al<sub>70</sub> Pd<sub>21</sub> Mn<sub>9</sub> quasicrystal has been studied using STM, LEED and AES. STM images from surfaces which have been sputtered and annealed to 875 K reveal 20-30 Å protrusions that have been identified by others as Mackay-type clusters. Higher-resolution images reveal substructures in these clusters having dimensions 2-3 Å. Longer annealing times at 875 K produced large areas having flat terraces which were imaged with atomic resolution. The LEED pattern from this surface has sharp spots on a low background, and AES indicates that the surface is deficient in Mn relative to the bulk. For surfaces annealed to 1050 K for less than 2 hours, STM images indicate that cluster and terrace phases coexist, and a third phase having aligned arrays of clusters is identified which appears to be intermediate between the cluster and terrace phases.</p>
dc.description.comments <p>This article appeared in <em>MRS Proceedings</em> 553 (1998): 237–244, doi:<a href="http://dx.doi.org/10.1557/PROC-553-237" target="_blank">10.1557/PROC-553-237</a>.</p>
dc.identifier archive/lib.dr.iastate.edu/ameslab_conf/37/
dc.identifier.articleid 1034
dc.identifier.contextkey 4630501
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_conf/37
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/6613
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/ameslab_conf/37/59.pdf|||Fri Jan 14 23:49:00 UTC 2022
dc.source.uri 10.1557/PROC-553-237
dc.subject.disciplines Condensed Matter Physics
dc.subject.disciplines Metallurgy
dc.title Clustered, Terraced And Mixed Surface Phases Of The Al70Pd21Mn9 Quasicrystal
dc.type article
dc.type.genre conference
dspace.entity.type Publication
relation.isAuthorOfPublication 316ee29f-99a9-49bc-a048-0f43caf97aa5
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
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