激光与光电子学进展, 2018, 55 (7): 071602, 网络出版: 2018-07-20
电场调控Au/Ti/Y2CeFe5O12结构的磁光克尔效应与电阻 下载: 756次
Electric-Field Control of Magneto-Optical Kerr Effect and Resistance of Au/Ti/Y2CeFe5O12 Structure
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 materials magneto-optical materials magneto-optic switching oxygen ion migration yttrium iron garnet electric-field control of magnetism
摘要
在室温下实现了全固态Au/Ti/Y2CeFe5O12多层结构的电阻和磁光克尔效应的电场调控。在635 nm波长处,1.5 V的操作电压使饱和磁光克尔旋转角的变化幅度达58.1 μrad,对应的能耗为0.66 nJ/μm2,响应时间为300 s,且该调控具有可逆性与非易失性。以Au/Y2CeFe5O12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。
Abstract
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 58.1 μrad 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 non-volatile. 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 magneto-optical devices.Key words
朱银龙, 秦俊, 张燕, 梁潇, 王闯堂, 毕磊. 电场调控Au/Ti/Y2CeFe5O12结构的磁光克尔效应与电阻[J]. 激光与光电子学进展, 2018, 55(7): 071602. Zhu Yinlong, Qin Jun, Zhang Yan, Liang Xiao, Wang Chuangtang, Bi Lei. Electric-Field Control of Magneto-Optical Kerr Effect and Resistance of Au/Ti/Y2CeFe5O12 Structure[J]. Laser & Optoelectronics Progress, 2018, 55(7): 071602.