TITLE

Effect of Ionizing Radiation on Energy-Barrier Distribution for Domain Walls in Ferroelectrics

AUTHOR(S)
Gladkiı, V. V.; Kirikov, V. A.; Ivanova, E. S.
PUB. DATE
May 2000
SOURCE
Crystallography Reports;May2000, Vol. 45 Issue 3, p482
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A precision study of slow polarization in a polydomain ferroelectric has been performed on an example of triglycine sulfate samples in weak electric fields prior to and upon their γ-irradiation at doses of 0.2 and 0.3 Mrad. It is shown that in all the cases, relaxation obeys the universal temporal power law. The phenomenological analysis of the experimental data was performed in the approximation of noninteracting relaxation centers (nuclei), which provided the restoration of the spectra of potential barrier distribution for domain walls in the crystal. The transformation of the spectrum of a γ-irradiated ferroelectric indicates the simultaneous formation of new small and gigantic barriers in the crystal.
ACCESSION #
7318932

 

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