Anisotropic re-entrant spin-glass features in a metallic kagome lattice, Tb3Ru4Al12

TL;DR

This study investigates the anisotropic magnetic properties of Tb3Ru4Al12, revealing reentrant spin-glass behavior along one crystallographic direction, which enhances understanding of geometrically frustrated magnetism in metallic kagome lattices.

Contribution

It reports the discovery of anisotropic reentrant spin-glass features in a metallic kagome lattice, highlighting directional dependence in magnetic glassy behavior.

Findings

Spin-glass-like behavior observed near 17 K along c-axis

No glassy anomalies detected along basal plane above 2 K

Reentrant spin-glass behavior is anisotropic in the material

Abstract

We report the results of ac and dc magnetic susceptibility and isothermal magnetization measurements (T= 2-300 K) on the single crystals of a metallic kagome lattice, Tb3Ru4Al12, reported recently to undergo reentrant magnetism with the onset of long range antiferromagnetic order below (TN=) 22K. The magnetization data obtained on the crystal with the c-axis orientation along magnetic-field reveal spin-glass-like characteristics near 17 K (below TN). However, for the orientation along basal plane, such glassy anomalies are not observable above 2 K. In this respect, this compound behaves like an anisotropic reentrant spin-glass. Possible implications of this finding to the field of geometrically frustrated magnetism is considered.