Structural and Magnetic Properties of EuIr₃Si₇Single Crystals

Recently, Eu-based intermetallic compounds have been reported to exhibit complex magnetic textures. In this talk, I will present the physical properties of a new member, the EuIr₃Si₇ single crystal, of the RT₃M₇ family. This family of compounds has already shown interesting magnetic properties such as anomalous metamagnetism in YbRh₃Si₇, ferromagnetic ordering along the hard axis in YbIr₃Ge₇, and charge-neutral fermions in YbIr₃Si₇. EuIr₃Si₇ crystallizes in the ScRh₃Si₇ structure type with space group R-3c. Furthermore, it exhibits two magnetic phases below T_N1 = 5 K and T_N2 = 15 K, with easy-axis anisotropy. The presentation discusses two magnetic phases assessed using magnetization, specific heat, ac susceptibility, and neutron diffraction data.