The dynamics of polarization switching have been investigated over extremely broad time (10−8<t<102 s) and field ranges for various modified Pb-based perovskite ferroelectrics. The results unambiguously demonstrate the presence of extremely broad relaxation time distributions for switching, which can extend over decade(s) in orders of magnitude in time.

The dynamics of polarization switching have been investigated over extremely broad time (10−8<t<102 s) and field ranges for (001)c, (110)c, and (111)c-oriented Pb(Zn1/3Nb2/3)O3–4.5%PbTiO3 crystals. The results demonstrate the presence of broad relaxation time distributions that can extend over a decade(s) in orders of magnitude in time, and which sharpen significantly with increasing field. The polarization transients have been fit to stretched exponential functions, which are typical of disordered systems.

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Articles you may be interested inElectric-field-controlled interface strain coupling and non-volatile resistance switching of La1-xBaxMnO3 thin films epitaxially grown on relaxor-based ferroelectric single crystals J. Appl. Phys. 116, 113911 (2014) The dynamics of polarization switching have been investigated over extremely broad time (10 Ϫ8 ϽtϽ10 2 s) and field ranges for hard, soft, and relaxor ferroelectrics based on aliovalent modified Pb(Zr 1Ϫx Ti x )O 3 . The results unambiguously demonstrate important differences in the polarization switching mechanism for these various types of ferroelectrics.

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