REMARKS ON FORCE CONSTANT MODELS FOR LATTICE DYNAMICS

Abstract

It is shown that the need to specify the equilibrium pressure may impose a restriction on the force constants used in calculating lattice vibration spectra. The existence of such a restriction depends upon the lattice under consideration and the generality of the force constant model that is used. A simple model is used to study the equilibrium atomic spacing near the surface of a crystal and show that this has no influence upon the relation between the equilibrium ressure and the force constants well within the bulk of the crystal. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1961
Accession Number
AD0270140

Entities

People

  • Harvey Kaplan

Organizations

  • Syracuse University

Tags

DTIC Thesaurus Topics

  • Crystal Lattice Vibrations
  • Crystal Lattices
  • Crystal Structure
  • Dynamics
  • Lattice Dynamics
  • Physics
  • Spectra
  • Vibration

Readers

  • Control Systems Engineering.
  • Theoretical Analysis.
  • Thin Film Deposition Science.

Technology Areas

  • Space