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Radiation-Induced effects in transparent ferroelectric ceramics

  • A. Sternberg
  • , A. Rubulis
  • , L. Shebanov
  • , V. Dimza
  • , A. Kapenieks
  • , M. Kundzinsh
  • , G. Grinvalds
  • , R. Stumpe
  • , S. Dindun
  • , U. Ulmanis
  • University of Latvia
  • Johannes Kepler University Linz
  • Institute of Physics

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

PLZT and PSN ceramics have been exposed to 7-radiation (energy ^1.15 MeV, dose up to 3 - 109rad), electron flux (4.5 MeV, dose up to 3, 1018electr./cm2) and fast neutrons (> 0.1 MeV, dose up to 1018n/cm2). The irradiated material was used to study radiation effects on dielectric parameters (a and tg6 were measured at frequencies from 1 kHz to 5 MHz), polarization (dielectric hysteresis quasistatic loops) and non-linear optical properties (I2W)- The measurements were made in the region of phase transition as well as to examine annealing of radiation-induced defects. As compared to PLZT the PSN ceramics is more resistant to radiation, the most sensitive PLZT compounds being with 7 X 9.5 at.% of La. Obtained results are explained by the change of ion charge, redistribution of vacancies in A and B sublattices of PLZT and by possible ion ordering in sublattice B of PSN with account for intrinsic fields in the relevant compounds.

Original languageEnglish
Pages (from-to)89-101
Number of pages13
JournalFerroelectrics
Volume90
Issue number1
DOIs
Publication statusPublished - 1 Feb 1989
Externally publishedYes

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