faceting induced by an ultrathin metal film: Pt on W(111)

Song Ker-Jar Song, Richard A. Demmin, Dong Chengzhi Dong, Eric Garfunkel, Theodore E. Madey

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Abstract

The interaction of ultrathin films on Pt with a W(111) surface has been studied using low energy electron diffraction (LEED), Auger electron spectroscopy (AES) and scanning tunneling microscopy (STM). When W(111) is covered with $ ̌1.1 × 1015 Pt atoms cm2 and heated in the range 800-1600 K, the surface undergoes a massive restructuring to form microscopic facets. At 1200 K., the average facet dimensions are ≳ 100 Å, and the dominant facet orientation is W(211). The faceting appears to be driven by a Pt-enhanced anisotropy in the surface free energy.

Original languageEnglish
Pages (from-to)L79-L85
JournalSurface Science
Volume227
Issue number1-2
DOIs
Publication statusPublished - Mar 1 1990

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ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Ker-Jar Song, S., Demmin, R. A., Chengzhi Dong, D., Garfunkel, E., & Madey, T. E. (1990). faceting induced by an ultrathin metal film: Pt on W(111). Surface Science, 227(1-2), L79-L85. https://doi.org/10.1016/0039-6028(90)90376-J