Thermally stimulated depolarization current in a modified SBNferroelectric ceramic system
Amorin, H.; Venet, M.; Guerrero, F.; Fundora, A.; Martinez, E.; Portelles, J.; Siqueiros, J.
Applications of Ferroelectrics, 2000. ISAF 2000. Proceedings of the 2000 12th IEEE International Symposium on
Volume 2, Issue , 2000 Page(s):775 - 778 vol. 2
Digital Object Identifier   10.1109/ISAF.2000.942434
Summary:The Thermally Stimulated Depolarization Current (TSDC) of the modified SBN ferroelectric ceramic system was studied. The TSDC measurements show the pyroelectric peak for all compositions while a second smaller peak at higher temperatures, possibly associated to induced vacancy-impurity dipoles is also observed in all cases. The second peak contribution was experimentally and mathematically eliminated. The activation energies and infinite temperature relaxation time of both processes are determined

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