Symmetry-mode analysis for intuitive observation of structure-property relationships in the lead-free antiferroelectric (1-x)AgNbO₃-xLiTaO₃.

ABSTRACT: Functional materials are of critical importance to electronic and smart devices. A deep understanding of the structure-property relationship is essential for designing new materials. In this work, instead of utilizing conventional atomic coordinates, a symmetry-mode approach is successfully used to conduct structure refinement of the neutron powder diffraction data of (1-x)AgNbO₃-xLiTaO₃ (0 ≤ x ≤ 0.09) ceramics. This provides rich structural information that not only clarifies the controversial symmetry assigned to pure AgNbO₃ but also explains well the detailed structural evolution of (1-x)AgNbO₃-xLiTaO₃ (0 ≤ x ≤ 0.09) ceramics, and builds a comprehensive and straightforward relationship betwe

SUBMITTER: Lu T 

PROVIDER: S-EPMC6608632 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature