[20p-131-1~8] 【CS.9】 Code-sharing Session of 10.1, 10.2, 10.3 & 10.4

▼ [20p-131-6] Electric field control of magnetism in surface-oxidized Co

〇Takamasa Hirai¹, Tomohiro Koyama¹, Daichi Chiba¹ (1.The Univ. of Tokyo)

Keywords:electric field effect, magnetism

Electric field (EF) effect on magnetism in 3d-transition metals has attracted a great attention as an efficient way for controlling magnetization in next generation spintronic devices. Change in the electronic structure by electrostatic charge accumulation and/or electrochemical reaction has been proposed for underlying mechanism. The latter leads to dramatic change in magnetic properties, but is not suitable for the device application because of slow response and low endurance. Although a magnetization switching in a sub-nanosecond speed is possible using the former mechanism (charge accumulation), the efficiency of the EF-induced change in the magnetic anisotropy should be enhanced for real application. In this talk, the EF control of magnetism in surface-oxidized Co in a solid state capacitor structure is discussed.