The Field Ion Microscopy of Gold. I. Hydrogen Promoted Field Evaporation - Experimental Results,

Abstract

A systematic study of the effect of hydrogen gas on the field evaporation characteristics of gold field ion microscope (FIM) specimens has been performed. The dependence of the field evaporation rate on hydrogen gas pressure, tip temperature, electric field strength, and time has been measured for the central axially symmetric (001) plane. There was no value of electric field strength at which FIM images of gold specimens were stable in the presence of hydrogen gas. Electron microscope observations of the hydrogen etched specimens indicated that the radius of curvature on the (001) region has a tendency to blunt, and that this tendency increased with increased hydrogen promoted field evaporation and temperature. (Modified author abstract)

Document Details

Document Type
Technical Report
Publication Date
Feb 24, 1970
Accession Number
AD0761410

Entities

People

  • D. G. Ast
  • David N. Seidman

Organizations

  • Cornell University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Curvature
  • Electric Fields
  • Electron Microscopes
  • Electrons
  • Evaporation
  • Field Ion Microscopy
  • Geometry
  • Hydrogen
  • Microscopes
  • Microscopy
  • Observation
  • Optical Analysis
  • Transition Temperature

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Fluid Dynamics.
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene