Influence of Pb and La contents on the lattice configuration of La-substituted Pb(Zr,Ti)O3 films fabricated by CSD method.
The influence of Pb and La contents on the lattice configuration in La-substituted Pb(Zr0(.65),Ti0(.35))O3 (La- PZT) films was systematically investigated. La-PZT films with various La and Pb contents were fabricated on Pt/Ti/SiO(2)/Si substrates by chemical solution deposition (CSD). In the La- PZT films with a Pb content ratio of 125% relative to a stoichiometric value, La ions were substituted for not only A-site ions but also B-site ions at La contents greater than 3 mol%. La substitution for B-site seems to cause larger reduction of the unit cell size. In addition, we found that in the La-PZT films with a La content of 3 mol%, the Pb content of 116 mol% (120% relative to a stoichiometric value) was optimum from the viewpoint of site occupancy. This indicates that excess Pb prevented the A-site substitution of La ions.
Shima
Hiromi
H
Department of Applied Physics, Tokyo University of Science, Tokyo, Japan.
Nishida
Ken
K
Funakubo
Hiroshi
H
Iijima
Takashi
T
Katoda
Takashi
T
Naganuma
Hiroshi
H
Okamura
Soichiro
S
D002516:Ceramics / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D007811:Lanthanum / Q000737:chemistry*; D007854:Lead / Q000737:chemistry*; D008422:Materials Testing; D008567:Membranes, Artificial; D008968:Molecular Conformation
D008567:Membranes, Artificial; D007854:Lead; D007811:Lanthanum