Thermally stimulated depolarization current in a modified SBN ferroelectric ceramic system

作者: H. Amorin , M. Venet , F. Guerrero , A. Fundora , E. Martinez

DOI: 10.1109/ISAF.2000.942434

关键词:

摘要: The Thermally Stimulated Depolarization Current (TSDC) of the modified SBN ferroelectric ceramic system was studied. TSDC measurements show pyroelectric peak for all compositions while a second smaller at higher temperatures, possibly associated to induced vacancy-impurity dipoles is also observed in cases. contribution experimentally and mathematically eliminated. activation energies infinite temperature relaxation time both processes are determined.

参考文章(17)
H. Amorı´n, J. Portelles, F. Guerrero, A. Fundora, J.M. Siqueiros, Ferroelectric properties of the La0.03Sr0.255Ba0.7Nb2-yTiyO6-y/2 ceramic system Journal of Electroceramics. ,vol. 3, pp. 371- 375 ,(1999) , 10.1023/A:1009965914641
K Umakantham, K Chandramouli, G Nageswara Rao, A Bhanumathi, Structural properties of inorganic materials: tungsten bronze SBN ceramics Bulletin of Materials Science. ,vol. 19, pp. 345- 355 ,(1996) , 10.1007/BF02744671
H Amorn, J Portelles, F Guerrero, J Perez, JM Siqueiros, Dielectric hysteresis and pyroelectricity in the La0.03Sr0.255Ba0.7Nb2−yTiyO(6−y)/2 ferroelectric ceramic system Solid State Communications. ,vol. 113, pp. 581- 585 ,(2000) , 10.1016/S0038-1098(99)00541-4
C. Bucci, R. Fieschi, Ionic Thermoconductivity. Method for the Investigation of Polarization in Insulators Physical Review Letters. ,vol. 12, pp. 16- 19 ,(1964) , 10.1103/PHYSREVLETT.12.16
S. T. Liu, A. S. Bhalla, Some interesting properties of dislocation-free and La-modified Sr0.5Ba0.5Nb2O6 Ferroelectrics. ,vol. 51, pp. 47- 51 ,(1983) , 10.1080/00150198308009052
F Guerrero, JJ Portelles, H Amoŕin, A Fundora, J Siqueiros, G Hirata, None, Sintering characteristics of the LSBN ceramics and influence of the lanthanum content Journal of The European Ceramic Society. ,vol. 18, pp. 745- 749 ,(1998) , 10.1016/S0955-2219(97)00154-4
P. B. Jamieson, S. C. Abrahams, J. L. Bernstein, Ferroelectric Tungsten Bronze‐Type Crystal Structures. I. Barium Strontium Niobate Ba0.27Sr0.75Nb2O5.78 Journal of Chemical Physics. ,vol. 48, pp. 5048- 5057 ,(1968) , 10.1063/1.1668176
P. V. Lenzo, E. G. Spencer, A. A. Ballman, ELECTRO‐OPTIC COEFFICIENTS OF FERROELECTRIC STRONTIUM BARIUM NIOBATE Applied Physics Letters. ,vol. 11, pp. 23- 24 ,(1967) , 10.1063/1.1754944
Kunihiro Nagata, Yoji Yamamoto, Hideji Igarashi, Kiyoshi Okazaki, Properties of the hot-pressed strontium barium niobate ceramics Ferroelectrics. ,vol. 38, pp. 853- 856 ,(1981) , 10.1080/00150198108209556