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Temperature-Induced Phase Transition Characteristics of [001]-Oriented 0.93Pb(Zn1/3Nb2/3)O3-0.07PbTiO3 (PZN-7%PT) Single Crystal by Using Piezoresponse Force Microscopy.


ABSTRACT: The evolution of the domain structures of [001]-oriented relaxor ferroelectric 0.93PbZn1/3Nb2/3O3-0.07PbTiO3 (PZN-7%PT) single crystals as a function of temperature was investigated in situ by using piezoresponse force microscopy (PFM). It was found that the local domain structure of PZN-7%PT single crystals at room temperature is rhombohedral with nanoscale twins. Temperature-dependent domain structures showed that the phase transition process is a collective process and that the sample underwent a sequence of rhombohedral (R) ? monoclinic (Mc) ? tetragonal (T) ? cubic (C) phase transformations when the temperature increased from 25 °C to 170 °C. The results provide direct observation of the phase transition evolution of PZN-7%PT single crystals as a function of temperature, which is of great significance to fully understand the relationships between the domain structure and phase structure of PZN-7%PT single crystals.

SUBMITTER: Wang H 

PROVIDER: S-EPMC7916775 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature

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Temperature-Induced Phase Transition Characteristics of [001]-Oriented 0.93Pb(Zn<sub>1/3</sub>Nb<sub>2/3</sub>)O<sub>3</sub>-0.07PbTiO<sub>3</sub> (PZN-7%PT) Single Crystal by Using Piezoresponse Force Microscopy.

Wang Hongli H   Zeng Kaiyang K  

Materials (Basel, Switzerland) 20210210 4


The evolution of the domain structures of [<sup>001</sup>]-oriented relaxor ferroelectric 0.93PbZn<sub>1/3</sub>Nb<sub>2/3</sub>O<sub>3</sub>-0.07PbTiO<sub>3</sub> (PZN-7%PT) single crystals as a function of temperature was investigated in situ by using piezoresponse force microscopy (PFM). It was found that the local domain structure of PZN-7%PT single crystals at room temperature is rhombohedral with nanoscale twins. Temperature-dependent domain structures showed that the phase transition proc  ...[more]

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