论文标题
RE（0001）的PD/Fe双层中的堆叠依赖性自旋相互作用
Stacking-dependent spin interactions in Pd/Fe bilayers on Re(0001)
论文作者
论文摘要
使用自旋极化扫描隧道显微镜和密度功能理论，我们研究了RE（0001）上PD/Fe原子双层的磁性。由于fe/re（0001）上PD adlayer的不同类型的堆叠，发现了两种磁接地态。对于在Fe/Re（0001）上进行PD的FCC堆叠，它是一个旋转的螺旋，沿着近距离包装的方向传播，周期约为0.9 nm，这是由沮丧的交换和Dzyaloshinskii-Moriya相互作用驱动的。对于HCP堆叠，高阶交换相互作用稳定了垂直于近距离包装方向的UUDD（上下向下）状态，周期约为1.0 nm。
Using spin-polarized scanning tunneling microscopy and density functional theory, we have studied the magnetic properties of Pd/Fe atomic bilayers on Re(0001). Two kinds of magnetic ground states are discovered due to different types of stacking of the Pd adlayer on Fe/Re(0001). For fcc-stacking of Pd on Fe/Re(0001), it is a spin spiral propagating along the close-packed direction with a period of about 0.9 nm, driven by frustrated exchange and Dzyaloshinskii-Moriya interactions. For the hcp stacking, the higher-order exchange interactions stabilize an uudd (up-up-down-down) state propagating perpendicular to the close-packed direction with a period of about 1.0 nm.
