论文标题
pt/euo $ _ {1-x} $中的自旋大厅和各向异性磁路的分辨率
Resolution of spin Hall and anisotropic magnetoresistance in Pt/EuO$_{1-x}$
论文作者
论文摘要
我们报告了pt/euo_ {1-x}薄膜的双层中磁倍率（MR）的角度和场依赖性，在不同温度下在平面内和平面几何形状中测量（t）。在双层中观察到了由金属 - 绝缘体过渡以及高-T铁磁向Paramagnet转变（T_P）表现出的氧空位的存在。各向异性磁阻（AMR）可以在整个T范围内，甚至在T_P上方提取，显示两个符号交叉。我们将其T进化归因于易于轴的旋转，从平面外面的平面外向到低T内部方向。此外，考虑到电影（111）纹理和界面的MR贡献，我们确定了一个T窗口，其中旋转霍尔效应诱导的旋转霍尔磁场（SMR）可以提取。
We report on the angular and field dependence of the magnetoresistance (MR) in bilayers of Pt/EuO_{1-x} thin films, measured in both in-plane and out-of-plane geometries at different temperatures (T). Presence of oxygen vacancies manifested by a metal-insulator transition as well as a high-T ferromagnet to paramagnet transition (T_P) were observed in the bilayers. The Anisotropic Magnetoresistance (AMR) could be extracted in the entire T-range, even above T_P, exhibiting two sign crossovers. We attribute its T-evolution to the rotation of easy axis direction from a high-T out-of-plane to a low-T in-plane orientation. In addition, considering MR contributions from the films' (111) texture and interface, we identify a T-window wherein the spin Hall effect induced spin Hall magnetoresistance (SMR) could be extracted.
