电场调控Au/Ti/Y_2CeFe_5O_(12)结构的磁光克尔效应与电阻  

Electric-Field Control of Magneto-Optical Kerr Effect and Resistance of Au/Ti/Y_2CeFe_5O_(12) Structure

作　　者：朱银龙 秦俊[1,2,3] 张燕 梁潇[1,2,3] 王闯堂 毕磊[1,2,3] Zhu Yinlong;Qin Jun;Zhang Yan;Liang Xiao;Wang Chuangtang;Bi Lei(National Engineering Research Center of Electromagnetic Radiation Control Materials,University of Electronic Science and Technology of China,Chengdu,Sichuan 610054,China;State Key Laboratory of Electronic Thin Films and Integrated Devices,University of Electronic Science and Technology of Chtna,Chengdu,Sichuan 610054,China;School of Microelectronics and Solid-State Electronics,University of Electronic Science and Technology of China Chengdu,Sichuan 610054,China)

机构地区：[1]电子科技大学国家电磁辐射控制材料工程技术研究中心,四川成都610054 [2]电子科技大学电子薄膜与集成器件国家重点实验室,四川成都610054 [3]电子科技大学微电子与固体电子学院,四川成都610054

出　　处：《激光与光电子学进展》2018年第7期378-386,共9页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(61475031;51522204);中央高校基本科研业务费专项资金(ZYGX2014Z001);高等学校学科创新引智计划(B13042);四川省青年科技基金(2015JQO014)

摘　　要：在室温下实现了全固态Au/Ti/Y_2CeFe_5O_(12)多层结构的电阻和磁光克尔效应的电场调控。在635nm波长处,1.5V的操作电压使饱和磁光克尔旋转角的变化幅度达58.1μrad,对应的能耗为0.66nJ/μm2,响应时间为300s,且该调控具有可逆性与非易失性。以Au/Y_2CeFe_5O_(12)作为对照,揭示了Ti层对该调控的关键影响。通过表征多层结构的电阻在电场作用下的变化,证实了氧离子迁移的发生。氧离子迁移是电场调控磁光效应的机制,该原型器件为发展电场可调的磁光器件提供了一种新途径。The electric-field control of resistance and magneto-optical Kerr effect of all-solid-state Au/Ti/Y2CeFe5O12 multilayer structure is realized at room temperature.At 635 nm wavelength,the rangeability of saturation magneto-optical Kerr rotation angle is 58.1μrad under the operation voltage of 1.5 V.The corresponding energy dissipation is 0.66 nJ·μm^-2 and the response time is 300 s.Moreover,the control is reversible and nonvolatile.The critical effect of Ti layer on such a modulation is disclosed by contrast to Au/Y2CeFe5O12.The occurrence of oxygen ion migration is confirmed via the characterization for the change of electrical resistance of multilayer structure under the effect of electric field.The oxygen ion migration is the mechanism of electric-field control of magneto-optical effect.This prototype device offers a new way to develop electric-field tunable magnetooptical devices.

关 键 词：材料 磁光材料 磁光开关 氧离子迁移 钇铁石榴石 电场调控磁性 

分 类 号：O436.4[机械工程—光学工程]