Chiral Spin Currents Enable Field-Free Magnetization Switching
Published:Dec 30, 2025 09:16
•1 min read
•ArXiv
Analysis
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.
Key Takeaways
- •Introduces a new method for magnetization switching using chiral dual spin currents (CDSC).
- •Utilizes an altermagnet (RuO2) to generate the CDSC.
- •Demonstrates field-free perpendicular magnetization switching.
- •Switching polarity is controlled by chirality, not charge current polarity.
- •Offers potential for low power consumption and high-performance spintronic devices.
Reference
“The switching polarity is dictated by chirality rather than charge current polarity.”