期刊
JOURNAL OF PHYSICS-CONDENSED MATTER
卷 32, 期 33, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-648X/ab88f7
关键词
electrolyte gating; Fe3O4; spintronics; supercapacitor
资金
- National Natural Science Foundation of China [11504192, 11674186, 11674385]
- National Science Foundation of Shandong Province [BSB2014010]
- Youth Innovation Promotion Association of CAS [2018008]
- Science and Technology Board of Qingdao [16-5-1-2-jch]
The manipulation of magnetism by electrical means is one of the most intensely pursued research topics of recent times aiming at the development of efficient and low-energy consumption devices in spintronics, microelectronics and bioelectronics. Herein, we successfully tuned the saturated magnetization of Fe3O4 by a supercapacitor. Through increasing the surface area of magnetic particles and activation of carbon cloth, fully reversible and robust saturation magnetization variation with low power consumption and remarkable switching speed can be realized on Fe3O4/ionic liquid interfaces at room temperature. The associated magnetism modulation can be attributed to ionic transition between Fe2+ and Fe3+ resulting from both electrostatic and electrochemical doping. This work paves the way for the development of high-performance spintronic devices.
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