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Effective Charges in Displacive Ferroelectrics
Author(s) -
Gervais F.
Publication year - 1980
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221000137
Subject(s) - ferroelectricity , condensed matter physics , phase transition , dielectric , materials science , mechanism (biology) , physics , optoelectronics , quantum mechanics
The temperature dependence of the effective charges in ferroelectrics BaTiO 3 , KNbO 3 , and LiTaO 3 is investigated in the vicinity of the ferroelectric—paraelectric phase transition. The results are understood in terms of a displacive‐type mechanism rather than order—disorder.