New possibilities for future energy efficient spintronics

Spin-orbit torque (SOT) phenomenon has attracted lots of attention due to its faster and ultralow power switching for spintronic memories. Usually, an external magnetic field is required to generate a charge current to exert SOT to switch the magnetization of the ferromagnet. However, the external control for deterministic SOT switching is always a big challenge for SOT technology. The recent paper published in ACS Nano, demonstrates an external magnetic field-free and deterministic switching in Fe₅GeTe₂/Pt heterostructure up to room temperature. 

This paper is the results from the collaboration of two partners from Chalmers University of Technology and Budapest University of Technology and Economics in 2DSPIN-TECH. Researchers from MAX IV, Lund University and University of Groningen also contribute to the publication. The findings presented in the article provide new possibilities for future energy efficient spintronics.

If you are curious on field-free SOT spintronics device and 2D magnetic materials, please read more here.