钙钛矿铁氧化物薄膜室温单相多铁性及磁电耦合效应的研究进展  

Advances in Room Temperature Single-phase Multiferroicity and Magnetoelectric Coupling Effect in Perovskite Iron Oxide Thin Films

作　　者：张军[1] 马建春[1] 王炎[1] 王丽芳[1] 苏天聪 ZHANG Jun;MA Jianchun;WANG Yan;WANG Lifang;SU Tiancong(Department of Chemistry&Material Engineering,Lyuliang University,Liliang 033001,China;Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education,Shanxi Normal University,Taiyuan 030031,China)

机构地区：[1]吕梁学院化工与材料工程系,山西吕梁033001 [2]山西师范大学磁性分子与磁信息材料教育部重点实验室,山西太原030031

出　　处：《山西大学学报（自然科学版）》2024年第6期1257-1267,共11页Journal of Shanxi University(Natural Science Edition)

基　　金：国家自然科学基金(12174237);山西省自然科学基金(202203021211335);先进永磁材料与技术省部共建协同创新中心项目(2022-05);吕梁市引进高层次科技人才重点研发项目(2023RC24)。

摘　　要：随着现代信息技术的不断发展,集铁电、磁性于一身的单相多铁材料因其特殊的物理性能,在电写磁读随机存储器、可调制多功能自旋电子器、自旋滤波器等领域有着广阔的应用前景。然而,目前所发现的单相多铁材料大多数磁电(magnetoelectric,ME)耦合效应较弱,而且工作温度远远低于室温,从而严重限制其在器件中的应用。作为室温单相多铁的明星材料,部分钙钛矿铁氧化物具有高的工作温度、强的ME耦合作用而引起了科学家们的广泛关注。本文首先介绍了单相多铁材料的重要应用,然后综述了4种具有代表性钙钛矿铁氧化物薄膜室温多铁性及ME耦合效应的研究进展,最后对单相多铁材料未来面临的挑战和一些亟待解决的问题进行了展望。With the development of modern information technology,single-phase multiferroic materials that combine ferroelectric and magnetic properties have broad application prospects in the fields of electric-write magnetic-read random access memory,tunable multifunctional spintronic devices,spin filters and so on,owing to their special physical properties.However,most of the singlephase multiferroic materials discovered so far have weak magnetoelectric(ME)coupling effects,and the working temperature is much lower than room temperature,which severely limit their application in devices.As the star materials in room-temperature single-phase multiferroics,some perovskite iron oxides have high working temperature and strong ME coupling effect,which has attracted wide attentions among scientists.In this paper,the important applications of single-phase multiferroic materials were introduced.Then the room temperature multiferroicity and ME coupling effect of four representative perovskite iron oxide thin films were summarized.Finally,the challenges and urgent problems to be solved in the future of single-phase multiferroic materials were prospected.

关 键 词：钙钛矿 单相多铁 磁电耦合 自旋电子学 

分 类 号：TB383.2[一般工业技术—材料科学与工程] O469[理学—凝聚态物理]