Room temperature multiferroic heterostructure: Nd: BiFeO3/YMnO3

Authors

Hongyang Zhao, Chinese Academy of Sciences
Hideo Kimura, National Institute for Materials Science
Zhenxiang Cheng, University of WollongongFollow
Xiaolin Wang, University of WollongongFollow
Qiwen Yao, National Institute for Materials ScienceFollow
Minoru Osada, National Institute for Materials Science
Baowen Li, National Institute for Materials Science

RIS ID

76036

Publication Details

Zhao, H., Kimura, H., Cheng, Z., Wang, X., Yao, Q., Osada, M. & Li, B. (2013). Room temperature multiferroic heterostructure: Nd: BiFeO3/YMnO3. Journal Of Crystal Growth, 365 (February), 19-23.

Abstract

In order to search candidate multiferroics, a heterostructure of Nd:BiFeO3/YMnO3 (BFO/YMO) was designed. It was fabricated using a pulsed laser deposition (PLD) method on (111) Nb: SrTiO3 substrate through layer-by-layer growth. The particularly interesting phases for Nd:BiFeO3 (P4mm) and YMnO3 (hexagonal and orthorhombic) were observed. This film has a high ferromagnetic Curie temperature at 420 K. The ferroelectric domain switching was observed and it exhibited large electromechanical coupling with maximum d(33)similar to 73 pm/V at 10 V.