Coexistence of MA and MC phases in Pb(Mg1∕3Nb2∕3)0.68Ti0.32O3 single crystals
作者： Peng Bao , Feng Yan , Xiaomei Lu , Jinsong Zhu , Huimin Shen
DOI: 10.1063/1.2177370
关键词:
摘要: The coexistence of MA (space group Cm) and MC Pm) phases in as-grown Pb(Mg1∕3Nb2∕3)0.68Ti0.32O3 (PMNT32) single crystals is observed at room temperature under polarization microscopy. Laminar domains normal to ⟨110⟩cub direction appear alternately PMNT32 crystals. In the heating run, show a phase transition sequence MA-MC-cubic, while only cubic. cooling cubic-MC-MA can be whole sample. It suggested that internal stress PMNT main reason for phases.
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