Author： Kikuta Toshio Yamazaki Toshinari Nakatani Noriyuki
Publisher： Taylor & Francis Ltd
ISSN： 0015-0193
Source： Ferroelectrics, Vol.290, Iss.1, 2003-01, pp. : 187-192
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Abstract
We have examined the dielectric dispersion in the middle of polarization reversal to find out the cause of the dispersions. Consequently, it turned out that the strength of the dispersion became large compared with the value measured just after annealing, and that the dielectric constant varied with time. Furthermore, the dielectric constant of a sample that became a single domain by the polarization control was different from that observed under a DC bias field after annealing. This may imply that some other relaxation processes exist besides domain wall motions.
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