Atomic Structure of Alloy Surfaces. 2. Ni3Al(111)

Abstract

A low energy electron-diffraction intensity analysis of a clean Ni3A1(111) surface reveals a structure that is essentially bulklike, but with a slight buckling of the first atomic layer. The plane of the Al atoms is moved outwards to a position 0.06 + or - 0.03 A from the plane of the Ni atoms, which is in turn very slightly shifted inward (0.01 + or - 0.03 A) toward the second atomic layer. Second and deeper interlayer spacings are expected to be equal to the bulk value (2.055 A). The r factor values for both normal (0.13) and oblique (0.16) incidence correspond to a very good fit of theory to experiment. Reprints.

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Document Details

Document Type
Technical Report
Publication Date
Nov 15, 1986
Accession Number
ADA201803

Entities

People

  • D. Sondericker
  • F. Jona
  • P. M. Marcus

Organizations

  • Stony Brook University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Agreements
  • Atomic Structure
  • Atoms
  • Auger Electron Spectroscopy
  • Auger Electrons
  • Base Pressure
  • Buckling
  • Calorific Value
  • Crystals
  • Diffraction
  • Electron Diffraction
  • Electron Spectroscopy
  • Electrons
  • Intensity
  • New York
  • Spectra
  • Spectroscopy

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Nanofabrication and Microfabrication.
  • Powder metallurgy of Titanium alloys.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene
  • Microelectronics - Microelectromechanical Systems
  • Space