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Preparation of solid solutions of deuterated triglycine sulphate and concentration dependence of some of their ferroelectric properties

Abstract

A number of ferroelectric solid solutions (N[H, D]2CH2COO[H, D])3[H, D]2SO4 have been prepared in the concentration range of the initial components of 0 to 94·2%. Moreover, the parameters of the Curie-Weiss law have been measured as a function of the concentration of the initial components. The course of the phase transition position and of the Curie constant as a function of the concentration is discussed by means of Janovec's thermodynamic theory of ferroelectric solid solutions. Mixed crystals cannot be classified as perfect solid solutions, but their behaviour may be expressed by regular approximation.

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Additional information

We wish to thank Dr. V. Janovec for valuable discussions, Professor R. Blinc and Dr. V. Marsel from the “J. Stefan Nuclear Institute”, Ljubljana, for their enthusiastic support of this investigation, Dr. J. Fousek for comments on the manuscript and Ing. K. Bernatzik for help in preparing the samples.

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Březina, B., Smutný, F. Preparation of solid solutions of deuterated triglycine sulphate and concentration dependence of some of their ferroelectric properties. Czech J Phys 18, 393–401 (1968). https://doi.org/10.1007/BF01689841

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Keywords

  • Sulphate
  • Phase Transition
  • Solid Solution
  • Concentration Dependence
  • Ferroelectric Property