[20p-A309-1~19] 6.1 Ferroelectric thin films

3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation AwardEnglish Presentation

[20p-A309-11] Magnetic phase transition induced modulation of ferroelectric properties in hexagonal RFeO₃ (R = Tb, Ho) system

〇Yaoming Liu¹, Binjie Chen¹, Yosuke Hamasaki², Hiromichi Ohta³, Tsukasa Katayama^3,4 (1.IST-Hokkaido U., 2.NDA, 3.RIES-Hokkaido U., 4.JST-PRESTO)

Keywords:

Multi-ferroic,Ferromagnetic,Ferroelectric

Hexagonal rare-earth iron oxides (h-RFeO₃) are promising multiferroic materials owing to the high ferroelectric transition temperature and spontaneous magnetization. Since both the ferroelectric and magnetic properties of h-RFeO₃ depend on the tilting of the FeO₅ bipyramids, fascinating features provided by magnetoelectric coupling are expected. In this study, we prepared h-TbFeO₃ and h-HoFeO₃ films which undergo transition between antiferromagnetic (AFM) and ferromagnetic (FM) phases by applying temperature and/or magnetic field. Interestingly, when magnetic phase transition occurs, their ferroelectric properties are modulated, indicating the strong magnetoelectric coupling of the films.