Field-free deterministic switching of all–van der Waals spin-orbit torque system above room temperature
Journal
Science Advances
Journal Volume
10
Journal Issue
11
Start Page
eadk8669
ISSN
23752548
Date Issued
2024
Author(s)
Abstract
Two-dimensional van der Waals (vdW) magnetic materials hold promise for the development of high-density, energy-efficient spintronic devices for memory and computation. Recent breakthroughs in material discoveries and spin-orbit torque control of vdW ferromagnets have opened a path for integration of vdW magnets in commercial spintronic devices. However, a solution for field-free electric control of perpendicular magnetic anisotropy (PMA) vdW magnets at room temperatures, essential for building compact and thermally stable spintronic devices, is still missing. Here, we report a solution for the field-free, deterministic, and nonvolatile switching of a PMA vdW ferromagnet, Fe3GaTe2, above room temperature (up to 320 K). We use the unconventional out-of-plane anti-damping torque from an adjacent WTe2 layer to enable such switching with a low current density of 2.23 × 106 A cm?2. This study exemplifies the efficacy of low-symmetry vdW materials for spin-orbit torque control of vdW ferromagnets and provides an all-vdW solution for the next generation of scalable and energy-efficient spintronic devices.
Subjects
Energy Efficiency
Ferromagnetic Materials
Ferromagnetism
Room Temperature
Spintronics
Superconducting Materials
Tellurium Compounds
Torque
Torque Control
Tungsten Compounds
Van Der Waals Forces
Deterministics
Electric Control
Energy Efficient
Ferromagnets
High Density Energy
Perpendicular Magnetic Anisotropy
Spin Orbits
Spintronics Device
Two-dimensional
Van Der Waal
Magnetic Anisotropy
Anisotropy
Article
Current Density
Magnet
Orbit Score
Room Temperature
Torque
SDGs
Publisher
American Association for the Advancement of Science
Type
journal article