Development of Bismuth Ferrite as a Piezoelectric and Multiferroic Material by Cobalt Substitution

Hajime Hojo; Kengo Oka; Keisuke Shimizu; Hajime Yamamoto; Ryo Kawabe; Masaki Azuma

doi:10.1002/adma.201705665

Development of Bismuth Ferrite as a Piezoelectric and Multiferroic Material by Cobalt Substitution

Adv Mater. 2018 Jun 19:e1705665. doi: 10.1002/adma.201705665. Online ahead of print.

Authors

Hajime Hojo¹, Kengo Oka², Keisuke Shimizu¹, Hajime Yamamoto¹, Ryo Kawabe¹, Masaki Azuma¹

Affiliations

¹ Laboratory for Materials and Structures, Tokyo Institute of Technology, Yokohama, 226-8503, Japan.
² Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, Tokyo, 112-8551, Japan.

PMID: 29920786
DOI: 10.1002/adma.201705665

Abstract

Bismuth ferrite (BiFeO₃ ) is the most widely studied multiferroic material with robust ferroelectricity and antiferromagnetic ordering at room temperature. One of the possible device applications of this material is one that utilizes the ferroelectric/piezoelectric property itself such as ferroelectric memory components, actuators, and so on. Other applications are more challenging and make full use of its multiferroic property to realize novel spintronics and magnetic memory devices, which can be addressed electrically as well as magnetically. This progress report summarizes the recent attempt to control the piezoelectric and magnetic properties of BiFeO₃ by cobalt substitution.

Keywords: multiferroic materials; piezoelectric materials; polarization rotation; weak ferromagnetism.

Publication types

Review