无机材料学报2025，Vol.40Issue(6)：587-608,22.DOI:10.15541/jim20240521
Ruddlesden-Popper结构杂化非常规铁电体的研究进展
Recent Progress of Hybrid Improper Ferroelectrics with Ruddlesden-Popper Structure
摘要
Abstract
Hybrid improper ferroelectricity(HIF)is recognized as a secondary ferroelectric phenomenon induced by coupling of in-plane rotation and out-of-plane tilt of anion octahedra in compounds with the units of perovskite structure.HIF is expected to be applicable in the multiferroic materials with strong magnetoelectric coupling owing to its intrinsic characteristic for electric-field control of magnetism,thereby greatly extending the connotation and denotation of ferroelectric physics.This paper focuses on the experimental progress of HIF materials with Ruddlesden-Popper(R-P)structure.It also establishes the linear relationship between Curie temperature(TC)and tolerance factor(τ)of double-layered R-P oxides,elucidating the underlying physical mechanisms of HIF.Based on intrinsic electric-field control of magnetism for HIF,the detection of coexistence of polar and weak ferromagnetic phases in ferrites with double-layered R-P structures is of great scientific significance.Additionally,the documented ferroelectricity in the A-site cation-ordered triple-layered R-P oxide has significantly expanded the fields of HIF.Although significant progress has been achieved in understanding HIF in R-P oxides,more efforts should be made to explore more new material systems and single-phase multiferroic materials.关键词
杂化非常规铁电性/Ruddlesden-Popper结构/单相多铁性/综述Key words
hybrid improper ferroelectricity/Ruddlesden-Popper structure/single-phase multiferroicity/review分类
数理科学引用本文复制引用
张碧辉,刘小强,陈湘明..Ruddlesden-Popper结构杂化非常规铁电体的研究进展[J].无机材料学报,2025,40(6):587-608,22.基金项目
国家自然科学基金(52172131)National Natural Science Foundation of China(52172131) （52172131）
