Production and Electron Diffraction Studies of Silver Metal Clusters in the Gas Phase

Abstract

Silver is evaporated into an inert gas flowing at pressures between 0.1 and 3 torr and nucleates to form clusters in a size range of 40 to 110 A. This two-phase mixture flows through a two stage molecular beam into a modified electron microscope. Electron diffraction patterns are taken in the cluster beam and analyzed assuming the bulk, face centered cubic unit cell and using a thirteen-beam, multislice, multiple scattering program. Deviations from the bulk structure are seen and are larger for smaller cluster size. Several possible interpretations are discussed. The use of inert molecular gasses as carriers is found to greatly increase cluster production.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1981
Accession Number
ADA098872

Entities

People

  • Barry G. Deboer
  • Gilbert D. Stein

Organizations

  • Northwestern University

Tags

DTIC Thesaurus Topics

  • Diffraction
  • Electron Diffraction
  • Electron Microscopes
  • Electrons
  • Microscopes
  • Molecular Beams
  • Production
  • Scattering

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Thin Film Deposition Science.

Technology Areas

  • Microelectronics