论文标题
Ba $ _3 $ tb的新六角形多晶的结构和磁性（bo $ _3 $）
Structure and magnetism of a new hexagonal polymorph of Ba$_3$Tb(BO$_3$)$_3$ with a quasi-2D triangular lattice
论文作者
论文摘要
本文报道了新的六角形（$ p6_3cm $）的结构和磁性表征Ba $ _3 $ _3 $ tb（bo $ _3 $）$ _ 3 $，具有较重的灯笼式骨质，带有formula ba $ ba $ _3 $ _3 $ ln（bo $ _3 $ _3 $）$ _3 $ _ 3 $ _ 3 $ _ 3 $ _ 3 $ _ 3 $ _ 3 $ _ 3 $ _ 3 $ _ 3 $ _ 3 $（ba $ _3 $）$ _ 3 $（ba $ _3 $）的结构和磁性表征。晶体结构包含TB $^{3+} $离子的准两维（2D）三角形晶格，并且预计由于低维度而显示出异常的磁性行为。磁化敏感性$χ（t）$显示出抗磁相互作用（$θ_{cw} = -7.15 $ k），在$ t \ geq 2 $ k时没有急剧的订购过渡，但分析$χ'（t）$，等体性磁力和热容量有可能在$ t range $ t range and and and and termant and the $ t。 $ t <4 $K。
This article reports the structural and magnetic characterisation of a new hexagonal ($P6_3cm$) low-temperature phase of Ba$_3$Tb(BO$_3$)$_3$, isostructural with the heavier lanthanide borates with formula Ba$_3$Ln(BO$_3$)$_3$ (Ln = Dy-Lu). The crystal structure contains a quasi-two-dimensional (2D) triangular lattice of Tb$^{3+}$ ions and is predicted to display unusual magnetic behaviour as a result of the low dimensionality. Magnetic susceptibility $χ(T)$ shows antiferromagnetic interactions ($θ_{CW} = -7.15$ K) and no sharp ordering transition at $T \geq 2$ K, but analysis of $χ'(T)$, isothermal magnetisation and heat capacity suggests the possibility of short-range ordering at $T \approx 10$ K. The material exhibits an inverse magnetocaloric effect at $T < 4$ K.
