全职科研人员

王文彬

发布者:缪瑾时间:2021-05-19

王文彬 

研究员

电话: 021-31249035

E-mail: wangwb@fudan.edu.cn

办公地点:江湾校区物理楼S403

个人简介:

王文彬,女,生于1983年,2006年本科毕业于兰州大学物理系,2013年在田纳西大学诺克斯维尔分校物理系获得理学博士学位,2013至2015年在复旦大学做超级博后,2015年起在复旦大学任青年研究员,2018年加入复旦大学微纳电子器件与量子计算机研究院。长期从事复杂氧化物薄膜和异质结的制备。近年来的研究工作主要集中于理解多铁材料中各种铁性序的形成机理,表征并理清铁之间的耦合机制,寻找高铁性转变温度,强铁磁/铁电极化强度,强铁电耦合的多铁材料。PRL等学术期刊上发表SCI论文近50篇,总引用600多次


研究方向

多铁材料的物性研究

多铁材料是指在一种材料中同时存在着多个铁性序,例如铁电序,自旋序,铁弹序,并且各种序参量之间存在着强的相互耦合作用。在这类材料中,在低能耗的信息存储和处理中有着重要的应用前景的是同时具有铁电序与自旋序的磁电多铁材料。由于磁电耦合的存在,在这类材料中有可能实现用电场来调控磁极化,或是磁场来调控电极化,这一性质可以用来制造多功能磁电耦合器件。比如,多态数据存储器中数据既可以用电极化也可以用磁极化来存储;在novel memory media中数据可以用电极化写入,用磁极化读取,这样可以避免损耗从而大大提高能效。这类器件将为信息存储和读写带来一场革命性的变革。他的大规模应用需要找到同时具有高铁电和铁磁转变温度,强铁电和铁磁耦合,以及强铁电和铁磁极化强度的多铁材料。我们的研究工作主要集中于理解多铁材料中铁电序和自旋序形成的机理,表征并理清铁电序和自旋序的耦合机制,寻找高铁磁/铁电转变温度,强铁磁/铁电极化强度,强铁磁/铁电耦合的多铁材料。

Multiferroics are materials that exhibit more than one ferroic orders simultaneously, such as ferroelectricity, ferromagnetism (antiferromagnetism) and ferroelasticity. In the quest for energy-efficient and compact materials for information processing and storage, magnetoelectric multiferroics stand out as promising candidates. Magnetoelectric multiferroics are materials that are simultaneously ferromagnetic and ferroelectric in the same phase with a coupling between them. As a consequence, these materials have a spontaneous magnetization that can be switched by an applied electric field and a spontaneous electrical polarization that can be switched by an applied magnetic field. Magnetoelectric multiferroics can be used to make multifunction devices. For example, for a multiple state memory, the data can be stored both in the electric and magnetic polarizations; for a novel memory media, the data can be written electrically and read magnetically. Practical applications will require a multiferroic material with a high transition temperatures, large electric and magnetic polarizations and strong coupling between ferroic orders. Our research will focus on elucidating the mechanism of ferroic orders; characterizing the magnetic and electric coupling; searching for a material with strong magnetoelectric coupling at high temperatures.