红外与毫米波学报2009，Vol.28Issue(5)：321-324,329,5.
PbZrxTi1-xO3多层膜中与极性缺陷复合体相关的介电驰豫
DIELECTRIC RELAXATION ASSOCIATED WITH DIPOLAR DEFECT COMPLEX IN PbZrxTi1-xO3 MULTILAYER
摘要
Abstract
Dielectric behavior of PbZr0.38Ti0.62O3 multilayer with alternating dense and porous PbZr0.38Ti0.62O3 layers was investigated at 420K. Two distinct dielectric relaxation processes were observed in the frequency range from 102 Hz to 106 Hz. The relaxation at lower frequencies is attributed to the space charge polarization. The one at higher frequencies, with a thermal activation energy of 0.49 eV, might originate from the response of singly positive charged defect ionized oxygen vacancies V0 and trivalent titanium ions Ti3+ as indicated by the results of Auger electron spectrum and electron paramagnetic resonance spectrum.关键词
PbZr0.38Ti0.62O3多层膜/极性缺陷复合体/介电驰豫Key words
PbZr0.38Ti0.62O3 multilayer/dipolar defect complex/ dielectric relaxation分类
数理科学引用本文复制引用
胡古今,张婷,孙璟兰,朱大明,褚君浩,戴宁..PbZrxTi1-xO3多层膜中与极性缺陷复合体相关的介电驰豫[J].红外与毫米波学报,2009,28(5):321-324,329,5.基金项目
Supported by National Natural Science Foundation of China (Grants No. 60578058, 10774154 and 60221502), Knowledge Innovation Program of Chinese Academy of Sciences, and Shanghai City Committee of Science and Technology in China (Grants No. 08JC1420900 and 0452nm085) （Grants No. 60578058, 10774154 and 60221502）
