ABSTRACT
The La doped ceramics PLZT-0.03/1-x/x (0.43 ≤ x ≤ 0.49) around morphotropic phase boundary (MPB) region were prepared by solid-state reaction. The ceramics exhibited diffused phase transition behavior, while MPB region showed the least degree of diffusion. It has been shown that distinct difference exists between poled and unpoled samples. All the samples exhibited thermal hysteresis behavior characteristic of the first order phase transition. The ferroelectric properties of the samples were also discussed.
Funding
We acknowledge funding from the National Key Project for Basic Research of China (Nos. 2013CB632900 and 2012CB619406), National Natural Science Foundation of China (Nos. 61137004 and 61275181), NSAF (No. U1330119 and U1330120), External Cooperation Program of BIC, China Academy of Sciences (No. 121631KYSB20130003).