[16p-K307-1~17] 9.1 Dielectrics, ferroelectrics

3:00 PM - 3:15 PM JST(6:00 AM - 6:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[16p-K307-6] Impact of chemical composition on electric-field-induced phase transitions
in Bi_1/2Na_1/2TiO₃–Bi_1/2K_1/2TiO₃ ferrielectrics

〇(D)Seiyu Aso¹, Kento Fukushima¹, Hiroki Matsuo¹, Yuji Noguchi¹ (1.Kumamoto Univ.)

Keywords:

Ferrielectrics,Electric-field-induced phase transitions,Energy storage

In recent years we have confirmed the presence of a ferrielectric phase in the Bi_1/2Na_1/2TiO₃–Bi_1/2K_1/2TiO₃ (BNT–BKT) solid solution. However the influence of composition on the electric-field-induced phase transitions between the ferrielectric and ferroelectric phases remains unclear. This study aims to clarify how composition affects the electric field-induced phase transition in BNT–BKT. Along with the K content x, a new compositional parameter, the A-site vacancy content δ, was introduced.