标题： 面外角度分辨二次谐波霍尔分析在垂直磁各向异性系统中的应用 显示英文标题

标题： Out-of-plane angle resolved second harmonic Hall analysis in perpendicular magnetic anisotropy systems

摘要： 第二谐波霍尔（SHH）测量是一种标准且广泛接受的技术，用于估算垂直磁各向异性（PMA）系统中的自旋轨道扭矩（SOT）效率。 通常，进行场扫和面内角度扫的SHH测量，并使用有效场基于的公式进行SOT效率计算。 在本文中，我们展示了一种替代的实验方法，即在PMA系统中进行垂直方向（OOP）角度分辨的SHH测量，以估算SOT效率。 此外，我们提出了一种替代的SOT效率提取公式，该公式通过在磁化率的低频极限下求解LLGS方程得到。 除了SHH测量外，我们还实验性地展示了基于反常霍尔效应（AHE）的自旋扭矩铁磁共振（STFMR）用于PMA系统。 显示英文摘要

摘要： Second Harmonic Hall (SHH) measurement is a standard and well accepted technique to estimate spin orbit torque (SOT) efficiencies in perpendicular magnetic anisotropy (PMA) systems. Generally, field sweep and in-plane angle sweep SHH measurements are performed and SOT efficiency calculation is done using effective fields based formalism. In this article, we demonstrate an alternate experimental approach of out-of-plane (OOP) angle resolved SHH measurement in PMA systems for SOT efficiencies estimation. Also, we present an alternate formalism for SOT efficiency extraction, derived by solving LLGS equation in the low frequency limit of magnetic susceptibility. Along with SHH measurements, we also experimentally demonstrate anomalous Hall effect (AHE) based spin-torque ferromagnetic resonance (STFMR) for PMA systems.