论文标题
范德华（Van der Waals）抗fiferromagnets中偶极木蛋白的自旋轨道耦合和线性交叉
Spin-orbit coupling and linear crossings of dipolar magnons in van der Waals antiferromagnets
论文作者
论文摘要
由偶极 - 偶极相互作用诱导的镁自旋轨道耦合，衍生在具有垂直磁各向异性的单斜叠式双层蜂窝状自旋晶格中，抗铁磁磁性层间层间层间耦合。线性横梁在G山谷中最小的磁杆频谱以及区域边界周围的高频范围内进行了预测。当内层偶极 - 偶极 - 偶极偶极或基塔耶的相互作用超过层间偶极 - 偶极 - 偶极偶极相互作用时，可以将连接原声和光条的K和K'Valleys中的线性交叉点间隙，从而导致从半含量到绝缘子的相变。我们的结果对于分析范德华抗铁磁铁中的镁自旋动力学和传输性能很有用。
A magnon spin-orbit coupling, induced by the dipole-dipole interaction, is derived in monoclinic-stacked bilayer honeycomb spin lattice with perpendicular magnetic anisotropy and antiferromagnetic interlayer coupling. Linear crossings are predicted in the magnon spectrum around the band minimum in G valley, as well as in the high frequency range around the zone boundary. The linear crossings in K and K' valleys, which connect the acoustic and optical bands, can be gapped when the intralayer dipole-dipole or Kitaev interactions exceed the interlayer dipole-dipole interaction, resulting in a phase transition from semimetal to insulator. Our results are useful for analyzing the magnon spin dynamics and transport properties in van der Waals antiferromagnet.
