利用热释电技术测试低温下非常规铁电体的铁电极化

Measurement of Ferroelectric Polarization of Unconventional Ferroelectrics at Low Temperature by Pyroelectric Technology

近年来,热释电测试技术已被广泛地用来测试低温下的非常规铁电体,特别是第二类多铁材料的铁电极化,但是大都是科研人员用来进行专业研究。目前大学生素质教育开展地如火如荼,该项技术可以让参加科研训练计划的学生做一些简单的课题研究,训练并培养学生一些基本的科研思维,科研习惯和科研技能。本文介绍了热释电技术测量铁电极化的基本原理,实验仪器,实验方法,并举例说明了一些实验技巧和注意事项。

In recent years,pyroelectric testing technology has been widely used to test the ferroelectric polarization of unconventional ferroelectrics at low temperature,especially the second kind of multiferroic materials,but most of them are used by scientific researchers for professional research.At present,the development of quality education for college students is in full swing.This technology can let the students who participate in the scientific research training program do some simple research,train and cultivate some basic scientific research thinking,research habits and research skills.It introduces the basic principle,experimental instrument and method of pyroelectric technology for measuring ferroelectric polarization,and illustrates some experimental techniques and precautions with examples.