Distribution of space charge and its effect on micro-macro domain transition of PLZT 8/65/35

Author

Zhongyang, Cheng ; Liangying, Zhang ; Xi Yao

Author_Institution

Electron. Mater. Res. Lab., Xi´´an Jiaotong Univ., China

fYear

1991

fDate

25-27 Sep 1991

Firstpage

400

Lastpage

404

Abstract

The space charge distribution of PLZT 8/65/35 was measured by the LIMM (laser intensity modulation method). It is concluded that space charge movement in PLZT 8/65/35 is very difficult at temperatures below 50°C and is easy above 50°C. A detailed discussion of the effect of space charge on the micro-macro domain transition is given. The large difference of dielectric anomalous temperature T_d measured on heating and cooling is mainly due to the effect of space charge; the abrupt disappearance of dielectric dispersion at T _d under DC bias is also due to the space charge effect

Keywords

electrets; ferroelectric transitions; lead compounds; permittivity; space charge; 50 degC; LIMM; PLZT; PbLaZrO3TiO3; dielectric anomalous temperature; dielectric dispersion; electret; laser intensity modulation method; micro-macro domain transition; space charge; Charge measurement; Cooling; Current measurement; Dielectric measurements; Dispersion; Intensity modulation; Laser transitions; Space charge; Space heating; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrets, 1991. (ISE 7) Proceedings., 7th International Symposium on (Cat. No.91CH3029-6)

Conference_Location

Berlin

Print_ISBN

0-7803-0112-9

Type

conf

DOI

10.1109/ISE.1991.167244

Filename

167244