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

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16 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 languageEnglish
Article number162907
JournalApplied Physics Letters
Volume90
Issue number16
DOIs
Publication statusPublished - 30 Apr 2007

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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