A new multiferroic heterostructure of YMnO3/SnTiO3+ x

Authors

Hongyang Zhao, National Institute Materials Science, Japan
Hideo Kimura, National Institute For Materials Science
Zhenxiang Cheng, University of WollongongFollow
Xiaolin Wang, University of WollongongFollow
Qiwen Yao, University of Wollongong National Institute for Materials Science, JapanFollow
M Osada, National Institute for Material Science, Sengen, Tsukuba
Baowen Li, National Institute for Materials Science, Japan
Takashi Nishida, Nara Institute of Science Tech Japan

RIS ID

38368

Publication Details

Zhao, H., Kimura, H., Cheng, Z., Wang, X., Yao, Q., Osada, M., Li, B. Nishida, T. (2011). A new multiferroic heterostructure of YMnO₃/SnTiO₃+ x. Scripta Materialia, 65 (7), 618-621.

Abstract

In order to find high-performance multiferroic materials, which are good candidates for lead-free piezoelectric/ferroelectric films, a new type of heterostructural thin film of YMnO₃/SnTiO_3+x (YST) was designed and produced. SnTiO₃ is a metastable but promising lead-free ferroelectric material. Our expectation was that it could be stabilized by alternating YMnO₃ layers. Here we report the fabrication and ferroelectric, piezoelectric and magnetic properties of YST films. Antiferromagnetic and ferroelectric properties were observed to coexist on the YST film with four layers, fabricated using the pulsed laser deposition method on (1 1 0) Nb:SrTiO₃ substrates. Although some basic ferroelectric properties of the SnTiO₃ films have previously been reported, further study is needed to obtain high-performance SnTiO₃ films.