Release of charges under external fields of PbLa(Zr,Sn,Ti)O_3 ceramic  

作　　者：张崇辉 徐卓 高俊杰 姚熹 

机构地区：[1]Electronic Materials Research Laboratory,Key Laboratory of the Ministry of Education,Xi'an Jiaotong University [2]School of Science,Xi'an Polytechnic University

出　　处：《Chinese Physics B》2011年第2期500-502,共3页中国物理B（英文版）

基　　金：supported by the National Basic Research Program of China (973 Program) (Grant No. 2009CB623306);the National Natural Science Foundation of China (Grant No. 60528008);the Key Science and Technology Research Project from the Ministry of Education of China (Grant No. 108180);the National Natural Science Foundation of China-NSAF (Grant No. 10976022)

摘　　要：This paper investigates the pyroelectric of poled antiferroelectric （AFE） ceramic Pbo.97Lao.02 （Zro.69Sno.196 Ti0.114）03 and its remnant polarization dependence of hydrostatic pressure. The results show that the bound charges of poled sample can be released in short time by temperature field or pressure field. The released charge abruptly forms a large pulse current. The phenomena of released charge under external fields result in the ferroelectric-AFE phase transition induced by temperature or hydrostatic pressure.This paper investigates the pyroelectric of poled antiferroelectric （AFE） ceramic Pbo.97Lao.02 （Zro.69Sno.196 Ti0.114）03 and its remnant polarization dependence of hydrostatic pressure. The results show that the bound charges of poled sample can be released in short time by temperature field or pressure field. The released charge abruptly forms a large pulse current. The phenomena of released charge under external fields result in the ferroelectric-AFE phase transition induced by temperature or hydrostatic pressure.

关 键 词：antiferroelectric ceramic PYROELECTRIC hydrostatic pressure phase transition 

分 类 号：O482.4[理学—固体物理]