Two-dimensional vacancy islands induced by the growth of Cr on Cu(111)

Jong Keon Yoon, Goo Eun Jung, Howon Kim, Kyung Hoon Chung, Se Jong Kahng

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Surface structures induced by the growth of Cr on Cu(111) at room temperature are studied with scanning tunneling microscopy. At sub-monolayer Cr coverage, islands and vacancy islands with lateral sizes of about 10 nm in length are observed. The islands show one- or two-monolayer heights with irregular shapes, while vacancy islands have one-monolayer depth and hexagonal shapes with openings. Atomic structures inside and near the vacancy islands are the same as those of bare Cu(111), implying that Cu atoms detach from the vacancy islands and attach to other step edges and islands. Possible origins and atomic processes for the observed structures are discussed.

Original languageEnglish
Pages (from-to)1375-1379
Number of pages5
JournalThin Solid Films
Volume519
Issue number4
DOIs
Publication statusPublished - 2010 Dec 1

Keywords

  • Chromium
  • Cupper
  • Growth
  • Scanning tunneling microscopy
  • Surface structure

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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