Room temperature energy-efficient spin-orbit torque switching in two-dimensional van der Waals Fe₃GeTe₂ induced by topological insulators.

ABSTRACT: Two-dimensional (2D) ferromagnetic materials with unique magnetic properties have great potential for next-generation spintronic devices with high flexibility, easy controllability, and high heretointegrability. However, realizing magnetic switching with low power consumption at room temperature is challenging. Here, we demonstrate the room-temperature spin-orbit torque (SOT) driven magnetization switching in an all-van der Waals (vdW) heterostructure using an optimized epitaxial growth approach. The topological insulator Bi₂Te₃ not only raises the Curie temperature of Fe₃GeTe₂ (FGT) through interfacial exchange coupling but also works as a spin current source allowing the FGT to switch at a low current density of ~2.2×10⁶ A/cm^2</

SUBMITTER: Wang H 

PROVIDER: S-EPMC10449904 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature