论文标题
通过比较场和电流诱导的开关来量化的抗铁磁COO/PT中有效的自旋扭矩
Efficient spin torques in antiferromagnetic CoO/Pt quantified by comparing field- and current- induced switching
论文作者
论文摘要
我们在共线隔离抗铁磁COO/PT中实现了电流诱导的转换，具有四倍的面内磁动率。这是通过自旋霍尔磁场抗性进行电测量的，并通过磁场诱导的COO层的自旋飞机过渡确认。通过应用电流脉冲和磁场，我们量化了作用电流诱导的扭矩的效率，并估算了$ 4x10^{ - 11} t a^{ - 1} m^2 $的电流场等效比。 NéelVector的最终状态（$ n \ perp j $）与COO的负磁弹性常数的热磁弹性开关机理一致。
We achieve current-induced switching in collinear insulating antiferromagnetic CoO/Pt, with fourfold in-plane magnetic anisotropy. This is measured electrically by spin Hall magnetoresistance and confirmed by the magnetic field-induced spin-flop transition of the CoO layer. By applying current pulses and magnetic fields, we quantify the efficiency of the acting current-induced torques and estimate a current-field equivalence ratio of $4x10^{-11} T A^{-1} m^2$. The Néel vector final state ($n \perp j$) is in line with a thermomagnetoelastic switching mechanism for a negative magnetoelastic constant of the CoO.
