Magnetic transition in the $J_\textrm{eff} = 1/2$ Kagom\'{e} system Sm$_3$Sb$_3$Zn$_2$O$_{14}$

TL;DR

This study investigates the magnetic properties of Sm$_3$Sb$_3$Zn$_2$O$_{14}$, a Kagomé lattice system, revealing evidence of short-range correlations and long-range magnetic order through specific heat measurements.

Contribution

First detailed thermodynamic study of Sm$_3$Sb$_3$Zn$_2$O$_{14}$ highlighting magnetic transition behavior on a Kagomé lattice.

Findings

Broad maximum in $C_p(T)$ at ~1.5 K indicating short-range correlations.

Sharp peak at ~0.5 K suggesting long-range magnetic order.

No clear anomaly in magnetic susceptibility down to 2 K.

Abstract

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 Kagom\'{e} 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.