Rotated incommensurate domains of Co ultrathin films on Pt(111)

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23 引文 斯高帕斯(Scopus)

摘要

Low energy electron diffraction (LEED) and Auger electron spectroscopy were used to study the initial growth of cobalt ultrathin films on a Pt(111) surface at room and low temperatures. The films show incoherent epitaxy at room temperature. Unrotated and rotated incommensurate Co domains with two equivalent angles of rotation, +4.9° and -4.9°, with respect to the aligned substrate, are observed by LEED for 2 monolayers of Co/Pt(111) after applying an annealing treatment. From a calculation of the mismatch for the corrugated surface, we confirm this reorientation angle. The evolution of the LEED satellite pattern for the deposition at 140 K is the same as for the deposition at room temperature, but a faint (2 × 2) LEED pattern was observed for higher coverages. UV photoelectron spectroscopy was used to monitor the evolution of the density of electronic states during deposition.

原文英語
頁(從 - 到)319-326
頁數8
期刊Surface Science
396
發行號1-3
DOIs
出版狀態已發佈 - 1998 一月

ASJC Scopus subject areas

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

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