Title :
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
fDate :
10/1/2008 12:00:00 AM
Abstract :
Effect of calcium doping on structural, dielectric and pyroelectric properties of Pb0.92-xLa0.08Cax(Zr0.65Ti0.35)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 (Ec and Pr) 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; Pb0.92-xLa0.08Cax(Zr0.65Ti0.35)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;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
Conference_Location :
10/1/2008 12:00:00 AM
DOI :
10.1109/TDEI.2008.4656230
