Controlling structural distortions with disordered cations as a pathway to research layered perovskite-type ferroelectrics

• Project/Area Number: 25K08265
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 26020:Inorganic materials and properties-related
• Research Institution: Kyoto University
• Principal Investigator: YI Wei 京都大学, 工学研究科, 准教授 (50903431)
• Project Period (FY): 2025-04-01 – 2028-03-31
• Project Status: Granted (Fiscal Year 2025)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2027: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2026: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2025: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
• Keywords: Ferroelectric oxides / disordered cations / Layered Perovskites

Outline of Research at the Start

The research will be carried out on Ln2AB2O7 (Ln = lanthanides) layered perovskite oxides as following: (1) modulating structural distortions via alteration of A-cations distribution, (2) magnetic cation substitution on B-site to produce magnetism in ferroelectrics, and (3) characterizations of the possible magnetoelectric coupling in the new ferroelectrics.