[9p-N201-1~14] 6.1 Ferroelectric thin films

4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[9p-N201-11] Topological Domain Control in BiFe_0.9Co_0.1O₃ Thin Films Using a Ring Electrode

〇Kei Maeda¹, Koomok Lee¹, Ibuki Matsuura¹, Hajime Nakayama¹, Kei Shigematsu^1,2, Masaki Azuma^1,2 (1.MSL Science Tokyo, 2.KISTEC)

Keywords:

Multiferroics,Thin film,Topological domain

With the increasing scale of information and communication technologies, reducing power consumption has become a global challenge. Multiferroic BiFe_0.9Co_0.1O₃ (BFCO), which exhibits both ferroelectricity and weak ferromagnetism, has attracted attention as a next-generation non-volatile memory material capable of electric-field-induced magnetization control. In this study, a ring-shaped electrode structure was introduced to apply an in-plane electric field and control local polarization and magnetic domains. By improving experimental conditions, we achieved wide-area domain observation and evaluated endurance under repeated voltage application. Recent results are presented here.