Heterogeneous distribution of B-site cations in BaZr x Ti 1-x O 3 epitaxial thin films grown on (001) SrTiO 3 by pulsed laser deposition

J Ventura,M C Polo,C Ferrater,S Hernandez,Jordi Sanchoparramon,L E Coy,L Rodriguez,A Canillas,L Fabrega,M Varela

Applied Surface Science（2016）

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摘要

•Wide compositional range of BaZrxTi1−xO3 (BZT) thin films on SrTiO3 grown by PLD.•Heterogeneous distribution of B-site cations with local clustering.•Asymmetric nonparabolic dependence of band gap energy with composition.•Nonideal solid solution behaviour with inherent tendency to phase segregation.

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关键词

Ferroelectric,Films,Pulsed laser deposition,Band gap

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