摘要
在比较铁电体材料与弛豫铁电体材料的异同之处的基础上，采用一般陶瓷工艺制备的U型电阻-温度特性热敏电阻电阻材料钛酸钡锶和钛酸铅锶等固溶体是一种掺杂弛豫铁电体。根据能带理论，用Heywang模型较好地解释了钛酸钡锶等材料中出现的U型电阻-温度特性。
The ferroelectrics and relaxor ferroelectrics are discussed. It is believed that the solid solutions of barium strontium titanate and lead strontium titanate by conventional process are doped relaxor ferroelectrics. The Heywang's double Schottky barrier model is introduced to explain their U-type resistance-temperature characteristics.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
1999年第2期136-140,共5页
Journal of University of Electronic Science and Technology of China
基金
国防科工委预研基金
关键词
铁电陶瓷材料
驰豫铁电体
半导体陶瓷
电阻-温度
ferroelectric
relaxor ferroelectric
solid solution
thermoster
grain boundary barrier
Heywang's model
