论文标题
带有非链球菌离子的三维砂光镜磁铁
Three-dimensional Sandglass Magnet with Non-Kramers ions
论文作者
论文摘要
对新合成的三维砂饼型格子型TM $ _3 $ _3 $ sbo $ _7 $进行了磁敏感性，特定的热量和MUON自旋松弛（$ $ $ SR）测量tm $^{3+} _ 2）$在不同温度范围内显示晶体电场效应。排除了零场中有序或玻璃状态下降至0.1〜K的存在。 TM $ _3 $ SBO $ _7 $的低能特性由$ \ rm tm tm^{3+} _ 1 $的最低非kramers Quasi-Doublet主导，并且能量拆分被认为是固有的横向横向场。因此，tm $ _3 $ _3 $ sbo $ _7 $中的低温顺磁现象由横向场Ising模型解释，该模型由特定热数据的定量模拟支持。此外，TM $^{3+} _ 2 $的扰动可能在计算$μ$ SR观察到的低温旋转动力学行为方面起重要作用。
Magnetic susceptibility, specific heat, and muon spin relaxation ($μ$SR) measurements have been performed on a newly synthesized three-dimensional sandglass-type lattice Tm$_3$SbO$_7$, where two inequivalent sets of non-Kramers Tm$^{3+}$ ions (Tm$^{3+}_1$ and Tm$^{3+}_2)$ show crystal electrical field effect at different temperature ranges. The existence of an ordered or a glassy state down to 0.1~K in zero field is excluded. The low-energy properties of Tm$_3$SbO$_7$ are dominated by the lowest non-Kramers quasi-doublet of $\rm Tm^{3+}_1$, and the energy splitting is regarded as an intrinsic transverse field. Therefore, the low-temperature paramagnetic phenomenon in Tm$_3$SbO$_7$ is explained by a transverse field Ising model, which is supported by the quantitative simulation of specific heat data. In addition, the perturbation from Tm$^{3+}_2$ may play an important role in accounting for the low temperature spin dynamics behavior observed by $μ$SR.
