FeNi/Pt/Bi₂Se₃ spin valve

10× higher signal at RT

Pt interfacial engineering optimizes spin current transmission, achieving large room-temperature unidirectional spin Hall magnetoresistance that further improves at elevated temperatures.

Zhang, Qi · Tao, Kun · Jia, Chenglong · Xu, Guofu · Chai, Guozhi · Zuo, Yalu · Cui, Baoshan · Yang, Dezheng · Xue, Desheng · Xi, Li

Nature Communications 2024

Specifications

值达到

{'zh': '30.6', 'en': ''} ppm/MA/cm²

二次谐波电阻变化

{'zh': '约0.11', 'en': ''} Ω/mA

Advantages

an order of magnitude higher than previously reported systems

performance further improves at elevated temperatures