A位有序四重钙钛矿氧化物:结构、物性和展望  

A-Site Ordered Quadruple Perovskite Oxides:Structures,Properties and Prospects

作　　者：王潇[1] 刘哲宏 卢达标 皮茂材 潘昭 龙有文[1,2,3] WANG Xiao;LIU Zhehong;LU Dabiao;PI Maocai;PAN Zhao;LONG Youwen(Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China;Songshan Lake Materials Laboratory,Dongguan 523808,Guangdong,China)

机构地区：[1]中国科学院物理研究所,北京凝聚态物理国家研究中心,北京100190 [2]中国科学院大学物理科学学院,北京100049 [3]松山湖材料实验室,广东东莞523808

出　　处：《高压物理学报》2024年第1期1-24,共24页Chinese Journal of High Pressure Physics

基　　金：国家重点研发计划(2021YFA1400300);国家自然科学基金(11934017,12261131499,11921004,12304159,12204516);北京市自然科学基金(Z200007);中国科学院先导B项目(XDB33000000)。

摘　　要：A位有序四重钙钛矿氧化物AA′3B4O12具有丰富的物理性质和优异的材料性能,是当今凝聚态物理和材料科学的重要研究对象。相较于简单的ABO3型钙钛矿,在A位有序四重钙钛矿氧化物中,3/4的A位离子被过渡金属离子A′所取代,形成了1∶3的A/A′有序结构。因此,A位有序四重钙钛矿氧化物中的磁-电相互作用不再局限于B位子晶格内部,新颖的A′-A′、A′-B等磁-电相互作用也随之产生,从而展现出许多新现象和新物理机制,并为未来的实际应用提供了材料基础。围绕几种具有代表性的A位有序四重钙钛矿氧化物,回顾其研究脉络,对其晶体结构、物理性质和内在机理进行简单介绍,并对这类材料体系的研究方向和应用前景做出一些展望。A-site ordered quadruple perovskite oxides with a formula as AA′3B4O12 exhibit multiple physical properties and superior performances,thus act as important subjects of current condensed matter physics and material science.Compared to the simple ABO3 perovskite,in the A-site ordered quadruple perovskite three quarters of the A atoms are replaced by transition metal Aʹ,forming ordered A/Aʹoccupancy with a 1∶3 ratio.As a result,the electric and magnetic interactions such as Aʹ-Aʹand Aʹ-B can occur,leading to novel phenomena and new physics.Here we focus on several representative A-site ordered quadruple perovskites,recall their researches,briefly introduce their structures,physical properties and inner mechanisms,and discuss the opportunities for both fundamental studies and potential applications.

关 键 词：高压制备 钙钛矿氧化物 介电性 电荷有序 多铁性 半金属 

分 类 号：O469[理学—凝聚态物理] O521.2[理学—电子物理学]