论文标题
SMI3:4F5蜂窝状磁铁,带有旋转轨道纠缠γ7克莱默double
SmI3: 4f5 honeycomb magnet with spin-orbital entangled Γ7 Kramers doublet
论文作者
论文摘要
我们报告了由smi6 contahedra的边缘共享网络组成的4F-荷兰碘化物SMI3的磁性特性。高温磁敏感性表明γ7Kramers双重基态的SM3+(4F5)离子通过自旋轨道耦合稳定和八面体晶体电场稳定,它们与SM-I-SM键角接近90度相互作用。磁化测量值降低到0.1 K检测到的抗磁相关性和磁化曲线的异常,然后饱和,没有远距离序列的迹象。讨论了SMI3与4F电子系统中提出的抗铁磁Kitaev材料之间的相关性。
We report magnetic properties of a 4f-honeycomb iodide SmI3 made up of edge-shared network of SmI6 octahedra. High temperature magnetic susceptibility indicates Γ7 Kramers doublet ground state of Sm3+ (4f5) ions stabilized by the spin-orbit coupling and octahedral crystal electric field, which interact with Sm-I-Sm bond angle nearly 90 degree. Magnetization measurements down to 0.1 K detected antiferromagnetic correlations and an anomaly in the magnetization curve before saturation without a sign of long-range order. Relevance between SmI3 and the antiferromagnetic Kitaev material proposed in the 4f-electron system is discussed.