$J_\textrm{eff} = 1/2$ Kagomé系统中的磁跃迁Sm $_3$ Sb $_3$ Zn $_2$ O $_{14}$
Magnetic transition in the $J_\textrm{eff} = 1/2$ Kagomé system Sm$_3$Sb$_3$Zn$_2$O$_{14}$
摘要:
通过磁化强度和比热容$C_p(T)$的测量,研究了$_3$-Zn-$_2$-$_{14}$(SSZO)的结构. SSZO在Kagomé晶格上含有分离良好的Sm $^{3+}$磁性离子平面。虽然我们的磁化率(数据被限制在2,K)没有显示任何异常,但已被降低到0.35 K的$C_p(T)$数据显示在$T\sim1.5$,K处有一个宽的最大值,随后在$T\sim0.5$,K处有一个尖锐的峰值,分别表示短程相关和长程有序。
英文摘要:
We present a study of Sm$_3$Sb$_3$Zn$_2$O$_{14}$ (SSZO) through magnetization and specific heat capacity $C_p(T)$ measurements. SSZO contains well separated planes of Sm$^{3+}$ magnetic ions on a Kagomé lattice. Though our magnetic susceptibility (where the data are limited down to 2\,K) does not show any anomaly, the $C_p(T)$ data which have been taken down to 0.35 K reveal a broad maximum at $T\sim1.5$\,K followed by a sharp peak at $T\sim0.5$\,K indicative of short-range correlations and long-range order, respectively.
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