标题： 交替磁性自旋分裂磁阻 显示英文标题

标题： Altermagnetic Spin-Splitting Magnetoresistance

摘要： 最近发现的反磁体，以其磁交换相互作用和交替晶体环境的奇特相关性为特点，为自旋电子学提供了令人兴奋的前沿机会。 在这里，我们报告了对反磁体自旋分裂磁电阻效应的实验观察，该效应由与反磁体巨大非相对论自旋分裂相关的自旋电流驱动。 与磁电阻极值相关的自旋电流极化和相应磁场方向主要由反磁体的奈尔矢量决定，与由传统相对论自旋电流驱动的情况相比，表现出显著的相位偏移。 我们的工作为揭示具有非常规自旋简并度破缺的新兴材料中丰富的非相对论量子物质状态打开了大门。 显示英文摘要

摘要： The recently discovered altermagnets, featured by the exotic correlation of magnetic exchange interaction and alternating crystal environments, have offered exciting cutting-edge opportunities for spintronics. Here, we report the experimental observation of an altermagnetic spin-splitting magnetoresistance effect, which is driven by a spin current associated with the giant nonrelativistic spin splitting of an altermagnet. The spin current polarization and the corresponding magnetic field direction associated with the magnetoresistance extrema are largely determined by the Neel vector of the altermagnet, leading to a remarkable phase shift compared to that driven by a conventional relativistic spin current. Our work opens a door to unearthing luxuriant nonrelativistic quantum states of matter in emergent materials with unconventional spin degeneracy lifting.