Ferroelectric anomaly of perovskite layer structured Pb2+‐doped Sr2Nb2O7 ceramics
Lintao Liu,
Tao Chen,
Delai Ouyang
et al.
Abstract:The spontaneous polarization of perovskite layer structured Sr2Nb2O7 ferroelectrics (FEs) is originated from mainly the oxygen octahedral rotations and partially the displacement of Sr2+ ions. However, there is FE anomaly of showing the typical characteristics of antiferroelectric (AFE)‐like behavior with double polarization–electric field hysteresis loops of Sr2Nb2O7 ceramics by Pb doping. Here, combinations of low frequency and sub‐terahertz band dielectric measurements under applied DC field reveal field‐in… Show more
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