Polarization and depolarization behavior of hot pressed lead lanthanum zirconate titanate ceramics
作者:
Yao Xi,
Chen Zhili,
L. E. Cross,
期刊:
Journal of Applied Physics
(AIP Available online 1983)
卷期:
Volume 54,
issue 6
页码: 3399-3403
ISSN:0021-8979
年代: 1983
DOI:10.1063/1.332453
出版商: AIP
数据来源: AIP
摘要:
A detailed study of the polarization and depolarization behavior of 7:65:35 and 8:65:35 lead lathanum zirconate titanate transparent ceramics under dc bias and constant heating rates has been carried out. The dielectric permittivity exhibits a new anomaly near 0 °C in freshly thermally depoled samples which is associated with a buildup of macrodomains and the development of a remanent polarization. From continuity of the dispersive behaviors it is suggested that the dielectric change at the so‐called &agr;–&bgr; transitionTdis not a conventional phase change, but rather is a loss of macro‐ordering and a decay back to a disordered microdomain texture.
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