Investigation of low temperature magnetic properties of triangular lattice frustrated magnet Ba₆RE₂Ti₄O₁₇

The investigation of new rare-earth (RE)-based triangular-lattice materials has unveiled significant potential for discovering exotic magnetic states, particularly quantum spin liquids (QSLs). In this study, we synthesized and examined the magnetic and thermodynamic properties of a number of recently discovered triangular lattice compound, Ba₆RE₂Ti₄O₁₇, which crystallize in the P6₃/mmc space group. In these materials, magnetic RE³⁺ ions form parallel triangular-lattice layers within the ab-plane and are stacked in an 'AA'-type arrangement along the c-axis, separated by nonmagnetic TiO₄ tetrahedra and Ti₂O₉ dimers. This distinct structural configuration creates an ideal environment for novel magnetic behaviour driven by geometric frustration and strong spin-orbit coupling. In this talk, we will present our recent experimental findings, offering detailed insights into the magnetic properties of these triangular lattice compounds.