Surface atomic structure of alloyed Mn5Ge3(0 0 0 1) by scanning tunneling microscopy

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

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7 Citations (Scopus)

Abstract

Surface atomic structure of Mn5Ge3(0 0 0 1) is studied by scanning tunneling microscopy. Hexagonal honeycomb ordering is observed at high energy levels, {divides}E - EF{divides} ∼ 1.2 eV, on the flat regions of three-dimensional Mn5Ge3 islands. At low energy levels, {divides}E - EF{divides} ∼ 0.5 eV, however, atomic images exhibit dot-array and ring-array structures, which show complete and partial contrast inversion, compared to the honeycomb ordering. Experimental observations are discussed on the basis of possible atomic models.

Original languageEnglish
Pages (from-to)481-486
Number of pages6
JournalSurface Science
Volume602
Issue number2
DOIs
Publication statusPublished - 2008 Jan 15

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Keywords

  • Alloys
  • Scanning tunneling microscopy
  • Solid phase epitaxy
  • Surface structure

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces

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