Van der Waals Materials for Spintronics: Progress, Challenges, and Future Directions

Recent advancements in van der Waals (vdW) materials have significantly impacted spintronic research, contributing to the development of devices such as magnetic tunnel junctions (MTJs), spin valves, and spin filters, as well as advancing fundamental studies on magnetic properties in reduced physical dimensions. The unique characteristics of vdW-assembled spintronic devices, including atomically flat interfaces and the ability to engineer material properties through proximity effects, enable the efficient induction of spin-orbit coupling, exchange polarization, and magnetic anisotropy at interfaces. These properties extend the applications of spintronics by reducing spin-dephasing scatterings and improving spin injection and detection efficiency. Despite several imminent challenges, including the discovery of new materials suitable for room-temperature applications and scalable synthesis methods, vdW materials hold great promise for next-generation spintronic devices, offering low-power, high-efficiency performance, and potential integration with quantum technologies.