Ferromagnetic Materials: Gigantic Current Control of Coercive Field and Magnetic Memory Based on Nanometer‐Thin Ferromagnetic van der Waals Fe3GeTe2 (Adv. Mater. 4/2021)
Source abstract
Abstract
In article number 2004110, Kaixuan Zhang, Hyun-Woo Lee, Je-Geun Park, and co-workers report gigantic current control of the coercive field in the van der Waals ferromagnet Fe3GeTe2. This results from an unusual type of gigantic spin–orbit torque (SOT) within Fe3GeTe2 itself, which is directly related to its special symmetries, large Berry curvature, and band topology. The current-induced SOT substantially changes the energy profile ball and suppresses the energy barrier, creating an easy path for magnetization switching and pushing the hard ferromagnet loop to a soft one. Such an effect will be extremely useful for magnetic memory and spintronics.
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Research context
OpenAlex topics: 2D Materials and Applications
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Affiliations
Center for Correlated Electron Systems Institute for Basic Science Seoul 08826 South Korea
Department of Physics and Astronomy and Institute of Applied Physics Seoul National University Seoul 08826 South Korea
Center for Quantum Materials Seoul National University Seoul 08826 South Korea
Department of Physics Pohang University of Science and Technology Pohang 37673 South Korea
Korea Atomic Energy Research Institute 111 Daedeok‐daero Daejeon 34057 South Korea
Asia Pacific Center for Theoretical Physics 77 Cheongam‐ro, Nam‐gu Pohang 3773 South Korea
References
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