磁性
电解质
自旋电子学
材料科学
超级电容器
磁化
电化学
纳米技术
电场
化学
凝聚态物理
磁场
铁磁性
电极
物理
物理化学
量子力学
作者
Fangchao Gu,Leqing Zhang,Zhaohui Li,Jie Zhang,Yuanyuan Pan,Qinghao Li,Hongsen Li,Yu-Feng Qin,Qiang Li
标识
DOI:10.1088/1361-648x/ac8e47
摘要
Electric field control of magnetism can boost energy efficiency and have brought revolutionary breakthroughs in the development of widespread applications in spintronics. Electrolyte gating plays an important role in magnetism modulation. In this work, reversible room-temperature electric field control of saturation magnetization in Fe3O4via a supercapacitor structure is demonstrated with three types of traditional gate electrolytes for comparison. Different magnetization response and responsible mechanisms are revealed by Operando magnetometry PPMS/VSM and XPS characterization. The main mechanism in Na2SO4, KOH aqueous electrolytes is electrochemical effect, while both electrochemical and electrostatic effects were found in LiPF6organic electrolyte. This work offers a kind of reference basis for selecting appropriate electrolyte in magnetism modulation by electrolyte-gating in the future, meanwhile, paves its way towards practical use in magneto-electric actuation, voltage-assisted magnetic storage, facilitating the development of high-performance spintronic devices.
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