Clustered, Terraced And Mixed Surface Phases Of The Al70Pd21Mn9 Quasicrystal Ledieu, J. Lograsso, Thomas Munz, A. Parker, T. McGrath, R. Diehl, R. Delaney, Dwight Lograsso, Thomas
dc.contributor.department Ames Laboratory 2018-02-13T15:16:19.000 2020-06-29T23:17:44Z 2020-06-29T23:17:44Z Fri Jan 01 00:00:00 UTC 1999 2013-09-25 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="" target="_blank">10.1557/PROC-553-237</a>.</p>
dc.identifier archive/
dc.identifier.articleid 1034
dc.identifier.contextkey 4630501
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_conf/37
dc.language.iso en
dc.source.bitstream archive/|||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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