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Theoretical and practical advances in the field of ferroelectcitricity stimulate search for, as well as preparation and investigation of, novel ferroelectrics exhibiting high pyroelectric, electric, optical and mechanical characteristics. This situation necessitates systimatization in analysis of available experimental data on various types of novel ferroelectric materials. A unique crystalline structure and an interesting complex of physical properties are displayed by the group ABO4 compounds (A = Sb or Bi, and B = Nb, Ta or Sb+5) belonging to the stibiotantalite type of structure.Of scientific and practical importance is the investigation of the advantageous effect exerted by dopants on principal electrophysical characteristics of group ABO4 compounds.
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Popolitov et al. (1982) studied this question.
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