Antiferromagnetic ordering in the Kondo lattice system ${\mathrm{Yb}}_2{\mathrm{Fe}}_3{\mathrm{Si}}_5$

Compounds belonging to the $R_2{\mathrm{Fe}}_3{\mathrm{Si}}_5$ series exhibit unusual superconducting and magnetic properties. Although a number of studies have been made on the first reentrant antiferromagnet superconductor ${\mathrm{Tm}}_2{\mathrm{Fe}}_3{\mathrm{Si}}_5,$ the physical properties of ${\mathrm{Yb}}_2{\mathrm{Fe}}_3{\mathrm{Si}}_5$ are largely unexplored. In this work, we attempt to provide a comprehensive study of bulk properties such as, resistivity, susceptibility, and heat capacity of a well-characterized polycrystalline ${\mathrm{Yb}}_2{\mathrm{Fe}}_3{\mathrm{Si}}_5.$ Our measurements indicate that ${\mathrm{Yb}}^{3+}$ moments order antiferromagnetically below 1.7 K. Moreover, the system behaves as a Kondo lattice with large Sommerfeld coefficient $\left(\gamma \right)$ of $0.5\hspace{0.5em}{\mathrm{J}/\mathrm{Y}\mathrm{b}\mathrm{}\mathrm{}\mathrm{mol}\mathrm{}\mathrm{}\mathrm{K}}^2$ at 0.3 K, which is well below $T_N.$ The absence of superconductivity in ${\mathrm{Yb}}_2{\mathrm{Fe}}_3{\mathrm{Si}}_5$ down to 0.3 K at ambient pressure is attributed to the presence of the Kondo effect.