Chiral Spin Currents Enable Field-Free Magnetization Switching

This paper introduces a novel mechanism for manipulating magnetic moments in spintronic devices. It moves away from traditional methods that rely on breaking time-reversal symmetry and instead utilizes chiral dual spin currents (CDSC) generated by an altermagnet. The key innovation is the use of chirality to control magnetization switching, potentially leading to more energy-efficient and high-performance spintronic architectures. The research demonstrates field-free perpendicular magnetization switching, a significant advancement.