Carbon-induced superstructure on Cr(001) thin-film surfaces

Hirofumi Oka, Akira Nakai, Kazuhisa S. Ueoka

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We have successfully fabricated an interesting carbon-induced superstructure on Cr(001) thin film surfaces deposited on MgO(001) substrates with a c(2 × 2)-C/Fe(001) seed layer. Reflection high energy electron diffraction shows that atomic arrangements of the C atoms on the Cr(001) thin film surfaces strongly depend on the film thickness of the Cr(001) thin films. The C atoms form reconstructions with three- and two-fold periodicities within the Cr(001) directions in the thickness range between 0.6 and 2.4 nm, and above 2.4 nm, respectively. Scanning tunneling microscopy and low energy electron diffraction reveal that a surface atomic arrangement of 2-nm-thick Cr(001) thin film surfaces is a c√2× √2)R45°-C reconstructed structure.

Original languageEnglish
Pages (from-to)5602-5606
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume46
Issue number8 B
DOIs
Publication statusPublished - 2007 Aug 23
Externally publishedYes

Keywords

  • AES
  • C(2 × 2)
  • C(3√2 × √2)R45°
  • Carbon
  • Cr(001)
  • LEED
  • STM
  • Superstructure

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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