An Investigation of the Dynamical Properties of Crystals by Raman Spectroscopy.

Abstract

This report describes light scattering measurements from a variety of materials which undergo structural phase transitions. The materials studied include boracites, lead germanate and perovskites and the studies have found new transitions, determined the nature of the soft mode and detailed the changes in the spectra due to the presence or addition of impurities. In addition associated theoretical work has questioned the validity of the usual way of interpreting soft mode results obtained from light scattering techniques. An experiment was also performed to study the light scattering from magnons in a mixed antiferromagnet. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1979
Accession Number
ADA072968

Entities

People

  • Wendy Taylor

Organizations

  • University of Edinburgh

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Dynamics
  • Excitation
  • Fabry Perot Interferometers
  • Germanates
  • Lattice Dynamics
  • Light Scattering
  • Materials
  • Measurement
  • Neutron Scattering
  • Phase Transformations
  • Raman Scattering
  • Raman Spectra
  • Raman Spectroscopy
  • Scattering
  • Spectra
  • Spectroscopy
  • Transitions

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Nanoscale Plasmonic Nanotechnology
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.