Electric Field Induced Reconstructions in STM Experiments on Au(111) Surfaces

Abstract

Reconstruction of atomically flat and negatively charged Au(111) surfaces during ATM imaging in air is reported. Formation of corrugation line pairs of 0.2 angstroms height and 63 angstroms periodic spacing during scanning is attributed to a local electric field induced transition of the surface layer into the reconstructed phase. The concurrent formation of holes and translation of steps during reconstruction suggests that Au(111) allows for both in-plane contraction and in-plane expansion of interatomic bond distances. STM images reveal that the observed corrugated lines in the structure are mobile and anneal into a stable surface structure on the time-scale of tens of seconds.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 27, 1992
Accession Number
ADA246849

Entities

People

  • Henry S. White
  • Joachim H. Scott

Organizations

  • University of Minnesota

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Chemical Engineering
  • Classification
  • Closed Loop Systems
  • Electric Fields
  • Electrons
  • Engineering
  • Field Ion Microscopy
  • Materials
  • Materials Science
  • Microscopy
  • Military Research
  • Minnesota
  • Phase
  • Security
  • Transitions
  • United States
  • Universities

Fields of Study

  • Physics

Readers

  • Image Processing and Computer Vision.
  • Materials Science and Engineering.
  • Thin Film Deposition Science.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster