Current-driven magnetization switching in a van der Waals ferromagnet Fe3GeTe2

Abstract

The recent discovery of ferromagnetism in two-dimensional (2D) van der Waals (vdW) materials holds promises for novel spintronic devices with exceptional performances. However, in order to utilize 2D vdW magnets for building spintronic nanodevices such as magnetic memories, key challenges remain in terms of effectively switching the magnetization from one state to the other electrically. Here, we devise a bilayer structure of Fe3GeTe2/Pt, in which the magnetization of few-layered Fe3GeTe2 can be effectively switched by the spin-orbit torques (SOTs) originated from the current flowing in the Pt layer. The effective magnetic fields corresponding to the SOTs are further quantitatively characterized using harmonic measurements. Our demonstration of the SOT-driven magnetization switching in a 2D vdW magnet could pave the way for implementing low-dimensional materials in the next-generation spintronic applications.

References in corpus (15)

• Discovery of intrinsic ferromagnetism in 2D van der Waals crystals
• Spin torque switching with the giant spin Hall effect of tantalum
• Gate-tunable Room-temperature Ferromagnetism in Two-dimensional Fe${}_3$GeTe${}_2$
• Current-driven dynamics of chiral ferromagnetic domain walls
• Electrical Control of 2D Magnetism in Bilayer CrI3
• Giant Tunneling Magnetoresistance in Spin-Filter van der Waals Heterostructures
• Symmetry and magnitude of spin-orbit torques in ferromagnetic heterostructures
• Switching of perpendicular magnetization by spin-orbit torques in the absence of external magnetic fields
• Emergent Phenomena Induced by Spin-Orbit Coupling at Surfaces and Interfaces
• Probing magnetism in 2D van der Waals crystalline insulators via electron tunneling
• Interface-Induced Phenomena in Magnetism
• Quantitative characterization of the spin orbit torque using harmonic Hall voltage measurements
• Dependence of the Efficiency of Spin Hall Torque on the Transparency of Pt-Ferromagnetic Layer Interfaces
• Spin torque study of the spin Hall conductivity and spin diffusion length in platinum thin films with varying resistivity
• One million percent tunnel magnetoresistance in a magnetic van der Waals heterostructure

Cited by in corpus (9)

• Wide Field Imaging of van der Waals Ferromagnet Fe3GeTe2 by Spin Defects in Hexagonal Boron Nitride
• Gate-controlled magnetic phase transition in a van der Waals magnet Fe${}_5$GeTe${}_2$
• ZrTe2/CrTe2: an epitaxial van der Waals platform for spintronics
• Large tunneling magnetoresistance in VSe2/MoS2 magnetic tunnel junction
• Electronic structure and magnetic properties of few-layer Cr${}_2$Ge${}_2$Te${}_6$: the key role of nonlocal electron-electron interaction effects
• Orbit-transfer torque driven field-free switching of perpendicular magnetization
• Room-temperature orbit-transfer torque enabling van der Waals magnetoresistive memories
• Strong bulk spin-orbit torques quantified in the van der Waals ferromagnet Fe3GeTe2
• Kinetically-controlled epitaxial growth of Fe${}_3$GeTe${}_2$ van der Waals ferromagnetic films