Field induced O-MC phase transition and domain structure evolution in Pb(Mg1/3Nb2/3)O3-0.34PbTiO3 single crystals under radial poling
In: Journal of Alloys and Compounds, Jg. 762 (2018-09-01), S. 222-230
Online
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Zugriff:
Radial electric (E)-field induced periodic polarization rotation from orthorhombic (O) to MC-type monoclinic (MC) phase in Pb(Mg1/3Nb2/3)O3-0.34PbTiO3 (PMN-0.34 PT) single crystals has been studied by in situ polarized light microscope. The piezoelectric coefficient ( d 33 ∗ ) and dielectric permittivity ( e 33 T / e 0 ) were 1800 pm/V and 5100, respectively, for [100]-oriented MC samples, almost three times of those in [011]-oriented O phase crystals. The domain structure evolution from 1O to 4MC was confirmed based on the optical extinction rules and permissible domain configurations. Moreover, the phase transition sequences of [100]- and [011]-poled PMN-0.34 PT crystals were MC—Tetragonal (T)—Cubic (C) and O—T—C upon heating, respectively. Our findings suggest that the phase stability of this crystals is associated with the orientation of applied field and radial E-field can serve as a general strategy to get fundamental insights into large piezoelectric activity and anisotropic phase stability in ferroelectric single crystals.
Titel: |
Field induced O-MC phase transition and domain structure evolution in Pb(Mg1/3Nb2/3)O3-0.34PbTiO3 single crystals under radial poling
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Autor/in / Beteiligte Person: | Zhang, Yiling ; Li, Qiang ; Zhou, Yaming ; Xu, Chao ; Yan, Qingfeng ; Luo, Nengneng ; Chu, Xiangcheng ; Zhuo, Fangping |
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Zeitschrift: | Journal of Alloys and Compounds, Jg. 762 (2018-09-01), S. 222-230 |
Veröffentlichung: | Elsevier BV, 2018 |
Medientyp: | unknown |
ISSN: | 0925-8388 (print) |
DOI: | 10.1016/j.jallcom.2018.05.186 |
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