Lattice Dynamics in KNO3, Phases I, II and III

  • M. Balkanski
  • M. K. Teng
  • M. Nusimovici


Since potassium nitrate is known to possess ferroelectric properties in one of its three phases, a renewal of interest of this material has been recently stimulated. The appearance of the ferroelectric phase transition in some materials has been related to the lattice dynamical properties of the crystal[l] and one may therefore expect that a detailed study of the lattice dynamics of the different crystallographic varieties of KNO3 would lead to a better understanding of its ferroelectric phase transistion.


Normal Mode Ionic Mode Infrared Absorption Ferroelectric Phase Rotational Mode 
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Copyright information

© Springer Science+Business Media New York 1969

Authors and Affiliations

  • M. Balkanski
    • 1
  • M. K. Teng
    • 1
  • M. Nusimovici
    • 1
  1. 1.Laboratoire de Physique des SolidesFaculte des SciencesParisFrance

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