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|Title:||Time- and temperature-dependent domain evolutions in poled (111)-cut (Pb(Mg[sub ⅓]Nb[sub ⅔])O₃)₀.₇(PbTiO₃)₀.₃ single crystal|
|Authors:||Wong, K. S.|
Zhao, X. Y.
Luo, H. S.
|Publisher:||American Institute of Physics|
|Source:||Applied physics letters, 16 Apr. 2007, v. 90, no. 16, 162907, p. 1-3|
|Abstract:||Ferroelectric domain evolution in poled (111)-cut (Pb(Mg[sub ⅓]Nb[sub ⅔])O₃)₀.₇(PbTiO₃)₀.₃ single 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.|
|Rights:||© 2007 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in K. S. Wong et al., Appl. Phys. Lett. 90, 162907 (2007) and may be found at http://apl.aip.org/resource/1/applab/v90/i16/p162907_s1|
|Appears in Collections:||AP Journal/Magazine Articles|
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