Low-temperature superlattice in monoclinic PbZr0.52Ti0.48O3

Article

关键词: LEAD-ZIRCONATE-TITANATE;    COMPLEX PEROVSKITES;    PHASE;   

DOI  :  10.1103/PhysRevB.66.060103

来源: SCIE

【 摘 要 】

Transmission-electron microscopy has shown that the strongly piezoelectric material PbZr0.52Ti0.48O3 separates into two phases at low temperatures. The majority phase is the monoclinic phase previously found by x-ray diffraction. The minority phase, with a nanoscale coherence length, is a slightly distorted variant of the first resulting from the antiphase rotation of the oxygen octahedra about [111]. This work clears up a recent controversy about the origin of superlattice peaks in these materials, and supports recent theoretical results predicting the coexistence of ferroelectric and rotational instabilities.

【 授权许可】

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