Current Control of Magnetism in Two-Dimensional Fe3GeTe2

Abstract

The recent discovery of magnetism in two-dimensional van der Waals systems opens the door to discovering exciting physics. We investigate how a current can control the ferromagnetic properties of such materials. Using symmetry arguments, we identify a recently realized system in which the current-induced spin torque is particularly simple and powerful. In Fe3GeTe2, a single parameter determines the strength of the spin-orbit torque for a uniform magnetization. The spin-orbit torque acts as an effective out-of-equilibrium free energy. The contribution of the spin-orbit torque to the effective free energy introduces new in-plane magnetic anisotropies to the system. Therefore, we can tune the system from an easy-axis ferromagnet via an easy-plane ferromagnet to another easy-axis ferromagnet with increasing current density. This finding enables unprecedented control and provides the possibility to study the Berezinskii-Kosterlitz-Thouless phase transition in the 2D XY model and its associated critical exponents.

arXiv commentManuscript: 6 pages, 2 figures; Supplementary: 4 pages, 1 figure

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Cited by in corpus (39)

• Néel-type skyrmions and their current-induced motion in van der Waals ferromagnet-based heterostructures
• Gigantic current control of coercive field and magnetic memory based on nm-thin ferromagnetic van der Waals Fe3GeTe2
• Current-induced deterministic switching of van der Waals ferromagnet at room temperature
• Magnetic ground state and electron doping tuning of Curie temperature in Fe${}_3$GeTe${}_2$: first-principles studies
• Magnetic structure and exchange interactions in the layered semiconductor CrPS4
• Magnetic exchange interactions in the van der Waals layered antiferromagnet MnPSe3
• Highly efficient nonvolatile magnetization switching and multi-level states by current in single van der Waals topological ferromagnet Fe3GeTe2
• Strong magneto-optical and anomalous transport manifestations in two-dimensional van der Waals magnets Fe${}_n$GeTe${}_2$ ($n$ = 3, 4, 5)
• Elusive Dzyaloshinskii-Moriya interaction in Fe${}_3$GeTe${}_2$ monolayer
• Efficient current-induced spin torques and field-free magnetization switching in a room-temperature van der Waals magnet
• Electrical control of spin and valley in spin-orbit coupled graphene multilayers
• Broken inversion symmetry in van der Waals topological ferromagnetic metal iron germanium telluride
• Janus Monolayers of Magnetic Transition Metal Dichalcogenides as an All-in-One Platform for Spin-Orbit Torque
• Room-Temperature Highly-Tunable Coercivity and Highly-Efficient Nonvolatile Multi-States Magnetization Switching by Small Current in Single 2D Ferromagnet Fe${}_3$GaTe${}_2$
• Strong bulk spin-orbit torques quantified in the van der Waals ferromagnet Fe3GeTe2
• Van der Waals heterostructures with spin-orbit coupling
• All van der Waals three-terminal SOT-MRAM realized by topological ferromagnet Fe3GeTe2
• Highly Efficient Room-Temperature Nonvolatile Magnetic Switching by Current in Fe3GaTe2 Thin Flakes
• Berezinskii-Kosterlitz-Thouless Phase in Two-dimensional Ferroelectrics
• Spin-orbit torque for field-free switching in C_{3v} crystals
• Two-dimensional ferromagnetic spin-orbital excitations in the honeycomb VI${}_3$
• Imaging current control of magnetization in Fe${}_3$GeTe${}_2$ with a widefield nitrogen-vacancy microscope
• Magnetoelectric effect in van der Waals magnets
• Topological magnetic phase transition in Eu-based A-type antiferromagnets
• Magnetoelectricity in two-dimensional materials
• Hidden interplay of current-induced spin and orbital torques in bulk Fe${}_3$GeTe${}_2$
• Lossless Spin-Orbit Torque in Antiferromagnetic Topological Insulator MnBi${}_2$Te${}_4$
• Giant Valley-Polarized Spin Splittings in Magnetized Janus Pt Dichalcogenides
• Angular dependence of spin-orbit torque in monolayer $F{e}_{3}GeT{e}_2$
• Artificially creating emergent interfacial antiferromagnetism and its manipulation in a magnetic van-der-Waals heterostructure
• Tuning magnetic anisotropy in Fe${}_5$GeTe${}_2$ monolayer through doping and strain
• Layer effects on the magnetic textures in magnets with local inversion asymmetry
• Photocurrents of charge and spin in single-layer Fe${}_3$GeTe${}_2$
• Unexpected versatile electrical transport behaviors of ferromagnetic nickel films
• Spin-orbit Torque Switching in an All-Van der Waals Heterostructure
• Quantum Imaging of Ferromagnetic van der Waals Magnetic Domain Structures at Ambient Conditions
• Spin-orbit torque: Moving towards two-dimensional van der Waals heterostructures
• Deterministic Switching of Perpendicular Ferromagnets by Higher harmonics of Spin-orbit Torque in Noncentrosymmetric Weyl Semimetals
• Valley-Polarized Quantum Anomalous Hall Phase in Bilayer Graphene with Layer-Dependent Proximity Effects