Experimental and Theoretical Studies of Molecular Solids

Abstract

Work over a three year period on the optical and dielectric properties of a sequence of ionic molecular solids such as K2SeO4, KNO, and NaNO2 is described. This work had both experimental and theoretical components. Principally the experiments used light scattering and birefringence to monitor structural and optical changes associated with solid-solid phase transitions. Theoretical studies concentrated on developing a unified theory of the ionic interactions in these systems which resulted in parameter free molecular dynamics simulations which closely reproduced the observed transition and structural behavior of these increasingly complex systems. Ferroelectrics, Phase, Transitions, Ionic, Molecular, Solids

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1993
Accession Number
ADA275511

Entities

People

  • Frank G. Ullman
  • John R. Hardy

Organizations

  • University of Nebraska–Lincoln

Tags

Communities of Interest

  • Advanced Electronics
  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Dielectric Properties
  • Diffraction
  • Dynamics
  • Electrical Engineering
  • Electro-Optics
  • Lattice Dynamics
  • Light Scattering
  • Molecular Dynamics
  • Phase Transformations
  • Physics
  • Raman Scattering
  • Raman Spectra
  • Scattering
  • Simulations
  • Transition Temperature
  • Transitions
  • United States

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Computational Modeling and Simulation
  • Materials Science and Engineering.