论文标题
镁介导的轨道磁性的证据
Evidence of Magnon-Mediated Orbital Magnetism in a Quasi-2D Topological Magnon Insulator
论文作者
论文摘要
我们探索Cu（1,3-BDC）中的自旋动力学，这是一种准2D拓扑镁绝缘子。结果表明，landé$ g $ -factor（$ g $）的热演化是各对立的：$ g_ \ textrm {in-plane} $减少，而$ g_ \ textrm {oftplane} $随着温度$ t $的升高而增加。 Moreover, the anisotropy of the $g$-factor ($Δg$) and the anisotropy of saturation magnetization ($ΔM_\textrm{s}$) are correlated below 4 K, but they diverge above 4 K. We show that the electronic orbital moment contributes to the $g$ anisotropy at lower $T$, while the topological orbital moment induced by thermally excited spin手性将$ g $各向异性命名为较高的$ t $。我们的工作暗示了Cu（1,3-BDC）中拓扑，旋转手性和轨道磁性之间的相互作用。
We explore spin dynamics in Cu(1,3-bdc), a quasi-2D topological magnon insulator. The results show that the thermal evolution of Landé $g$-factor ($g$) is anisotropic: $g_\textrm{in-plane}$ reduces while $g_\textrm{out-plane}$ increases with increasing temperature $T$. Moreover, the anisotropy of the $g$-factor ($Δg$) and the anisotropy of saturation magnetization ($ΔM_\textrm{s}$) are correlated below 4 K, but they diverge above 4 K. We show that the electronic orbital moment contributes to the $g$ anisotropy at lower $T$, while the topological orbital moment induced by thermally excited spin chirality dictates the $g$ anisotropy at higher $T$. Our work suggests an interplay among topology, spin chirality, and orbital magnetism in Cu(1,3-bdc).
