Effect of calcium doping on dielectric and pyroelectric properties of PLZT

Author

Mohiddon, Md A. ; Yadav, K.L.

Author_Institution

Dept. of Phys., Indian Inst. of Technol., Roorkee

Volume

15

Issue

5

fYear

2008

fDate

10/1/2008 12:00:00 AM

Firstpage

1236

Lastpage

1241

Abstract

Effect of calcium doping on structural, dielectric and pyroelectric properties of Pb_0.92-xLa_0.08Cax(Zr_0.65Ti_0.35)_0.98O₃ (PLCZT) composition derived by the solid state reaction method was studied. Rhombohedral perovskite phase was confirmed in all the PLCZT samples. Calcium doping did not show any structural change in PLCZT (8/65/35) up to 2.5 % doping, however grain size and crystallite size was found to increase up to 1%, but no systematic variation of transition temperature was found with Ca doping. P-E hysteresis loop parameters (E_c and P_r) and pyroelectric properties were found to decrease with Ca doping up to 1% and there after increased.

Keywords

calcium compounds; dielectric hysteresis; doping; ferroelectric materials; grain size; lanthanum compounds; lead compounds; permittivity; pyroelectricity; PLZT composition; Pb_0.92-xLa_0.08Ca_x(Zr_0.65Ti_0.35)_0.98O₃; calcium doping; crystallite size; dielectric constant; dielectric properties; grain size; hysteresis loop parameters; pyroelectric properties; rhombohedral perovskite phase; solid state reaction method; transition temperature; Calcium; Composite materials; Dielectric measurements; Doping; Ferroelectric materials; Grain size; Lead; Pyroelectricity; Temperature; Zirconium; Dielectric constant; PLCZT bulk; calcium doping; ferroelectric; pyroelectric;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

Conference_Location

10/1/2008 12:00:00 AM

ISSN

1070-9878

Type

jour

DOI

10.1109/TDEI.2008.4656230

Filename

4656230