Time- and temperature-dependent domain evolutions in poled (111)-cut (Pb(Mg1/3Nb2/3)O3)0.7(PbTiO3)0.3single crystal

K. S. Wong; J. Y. Dai; X. Y. Zhao; H. S. Luo

doi:10.1063/1.2728745

Time- and temperature-dependent domain evolutions in poled (111)-cut (Pb(Mg_1/3Nb_2/3)O₃)_0.7(PbTiO₃)_0.3single crystal

K. S. Wong, J. Y. Dai, X. Y. Zhao, H. S. Luo

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

17 Citations (Scopus)

Abstract

Ferroelectric domain evolution in poled (111)-cut (Pb(Mg1/3Nb2/3)O3)0.7(PbTiO3)0.3single crystal has been studied by means of piezoresponse force microscopy (PFM). A time-dependent development of lamellar ferroelectric domains from a single domain structure of the just-poled sample has been observed, and it reveals that the formation of the lamellar macrodomains is via the accumulation of well-aligned speckle-shaped nanodomains grown from polar nanosized regions (PNRs). The domain evolutions from macrodomain to microdomain, and from ferroelectric to paraelectric phase at different temperatures, have been revealed in temperature-dependent PFM imaging, and the results are consistent with temperature-dependent relative permittivity measurement. PNRs are believed to play a key role in the domain evolution of depolarization process.

Original language	English
Article number	162907
Journal	Applied Physics Letters
Volume	90
Issue number	16
DOIs	https://doi.org/10.1063/1.2728745
Publication status	Published - 30 Apr 2007

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2728745

http://hdl.handle.net/10397/4350

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abstract = "Ferroelectric domain evolution in poled (111)-cut (Pb(Mg1/3Nb2/3)O3)0.7(PbTiO3)0.3single crystal has been studied by means of piezoresponse force microscopy (PFM). A time-dependent development of lamellar ferroelectric domains from a single domain structure of the just-poled sample has been observed, and it reveals that the formation of the lamellar macrodomains is via the accumulation of well-aligned speckle-shaped nanodomains grown from polar nanosized regions (PNRs). The domain evolutions from macrodomain to microdomain, and from ferroelectric to paraelectric phase at different temperatures, have been revealed in temperature-dependent PFM imaging, and the results are consistent with temperature-dependent relative permittivity measurement. PNRs are believed to play a key role in the domain evolution of depolarization process.",

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AU - Luo, H. S.

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Time- and temperature-dependent domain evolutions in poled (111)-cut (Pb(Mg_1/3Nb_2/3)O₃)_0.7(PbTiO₃)_0.3single crystal

Abstract

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