[8a-P05-1~21] 6.4 Thin films and New materials

[8a-P05-3] Fabrication of YBaFe₂O_xF_y epitaxial thin films by topochemical fluorination

〇Reina Tsuiji¹, Akiko Kamigaito¹, Kei Shigematsu², Tsukasa Katayama³, Yasushi Hirose⁴, Akira Chikamatsu¹ (1.Ochanomizu Univ., 2.MSL, Science Tokyo., 3.Hokkaido Univ., 4.Tokyo Metropolitan Univ.)

Keywords:

Multiferroic materials,perovskites,iron oxide fluoride

Multiferroic materials, which exhibit both ferroelectricity and magnetic order, are promising for device applications utilizing magnetoelectric effects, such as non-volatile magnetic memory and magnetic sensors. First-principles calculations have predicted that YBaFe₂O₅F exhibits multiferroic properties at room temperature. To evaluate these properties, single-crystalline oxyfluorides are required. In this study, we aimed to fabricate YBaFe₂O₅F single-crystalline thin films and investigated changes in crystal structure and chemical composition as a function of the topochemical fluorination temperature.