[17a-411-1~11] 6.1 Ferroelectric thin films

[17a-411-5] Preparation of BiFeO₃ Thin Films on Patterned SrTiO₃ substrate (Ⅱ)

〇Yuta Kurokawa¹, Shota Seto², Seiji Nakashima^1,2, Hironori Fujisawa^1,2, Masaru Shimizu^1,2 (1.Univ. of Hyogo, 2.Grad. Sch. Univ. of Hyogo)

Keywords:Bismuth ferrite, Domain wall, Surface modification

Ferroelectric charged domain walls (CDWs) are known as their switching phenomena of conductivity. To applying those to practical switching devices, it is necessary to establish the technology for induction of CDWs at needed positions. In this study, sloped line patterns were fabricated on the surface of vicinal SrTiO₃ (110) substrare to induce CDWs, then BiFeO₃ thin film was prepared on that. As the result, CDWs were found to be induced at the boundary of sloped line patterns.