论文标题
通过自旋轨道耦合引起的基于MGO的磁性隧道连接处的各向异性磁电阻
Anisotropic magneto-resistance in MgO-based magnetic tunnel junctions induced by spin-orbit coupling
论文作者
论文摘要
我们对AG(ir,pt)$/$ MGO $/$ FE连接的AG(ir,pt)中的隧道各向异性磁耐药(TAMR)进行了第一原理研究。分别发现了具有理想和偏斜的四倍的角度依赖性的TAMR,分别在系统内和平面外TAMR发现,在某些连接中显示了简单的屏障厚度依赖性,数量约为10 \%。由于自旋轨道耦合而导致的界面谐振状态的复杂角度依赖性应负责这些连接中发现的复合物和增强的TAMR。
We performed a first-principles study of the tunneling anisotropic magneto-resistance (TAMR) in Ag(Ir,Pt)$/$MgO$/$Fe junctions. Enhanced TAMR with ideal and skewed fourfold angular dependence is found in-plane and out-of-plane TAMR of the system, respectively, which shows simple barrier thickness dependency with number around 10\% in some junctions. The complex angular dependency of the interfacial resonant states due to the spin-orbit coupling should be responsible to the complex and enhanced TAMR found in these junctions.