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
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...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
MDPI AG
2021-02-01
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Series: | Materials |
Subjects: | |
Online Access: | https://www.mdpi.com/1996-1944/14/4/855 |
Summary: | 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 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. |
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ISSN: | 1996-1944 |