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Hierarchical Domain Structure of Adaptive MB Phase in Pb(Mg1/3Nb2/3)O3–32%PbTiO3 Single Crystal

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The domain structure in Pb(Mg1/3Nb2/3)O3–32%PbTiO3 single crystal has been investigated with analytical electron microscopy. It is revealed that the MB phase is an adaptive phase composed of 71° rhombohedral nanodomains and that the nanodomain walls are parallel to {110} planes by a combination of convergent beam electron diffraction and through-focus high-resolution image series. The findings suggest and are supportive of the viewpoint that the MA phase could also be an adaptive phase composed of 109° rhombohedral nanodomains with domain walls parallel to {001} planes.

Document Type: Research Article


Affiliations: 1: Beijing National Center for Electron Microscopy and Laboratory of Advanced Materials, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China 2: State Key Lab of New Ceramics and Fine Processing, Department of Materials, Science and Engineering, Tsinghua University, Beijing 100084, China 3: The State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, China

Publication date: 2008-07-01

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