'工学部/工学系研究科 プレスリリース' blog (64135473799) of hub id 20511701

PRESS RELEASE

Enhanced piezoelectric response due to polarization rotation in cobalt-substituted BiFeO3 epitaxial thin film

 

Authors

Keisuke Shimizu,Hajime Hojo,Yuichi Ikuhara,Masaki Azuma

 

Abstract

Polarization rotation induced by an external electric field in piezoelectric materials such as PbZr1−xTixO3 is generally regarded as the origin of their large piezoelectric responses. Here, the piezoelectric responses of high-quality cobalt-substituted BiFeO3 epitaxial thin films with monoclinic distortions are systematically examined. It is demonstrated that polarization rotation plays a crucial role in improving piezoelectric responses in this material.

 

 

Advanced Materials URL: http://onlinelibrary.wiley.com/doi/10.1002/adma.201602450/full