Magnetic Kagome Lattice (Gd,Tb,Dy,Ho,Er)Mn₆Sn₆ with High Configuration Entropy

The magnetic kagome lattice compound RMn₆Sn₆ (R = rare earth) is an emerging platform to exploit the interplay between magnetism and topological electronic states, where a variety of exciting findings, such as flat bands and Dirac points, as well as the dramatic dependence of magnetic order on the rare-earth element, have been reported. High configurational entropy through rare earth alloying, on the other hand, provides another knob to control the physical properties in this system. Here, by the marriage of high entropy and the magnetic Kagome lattice, we obtain (Gd,Tb,Dy,Ho,Er)Mn₆Sn₆ single crystals and systematically investigate their magnetic and transport properties. Different from the parent phases, the high entropy 166 material displays multiple novel magnetic transitions induced by temperature and external magnetic fields. Furthermore, linear magnetoresistance persisting up to 20 T has been revealed at 4 K. The intrinsic nontrivial band topology also survives in the high-entropy phase, as evidenced by the intrinsic anomalous Hall effect. Our study offers a glimpse into a vast compositional landscape that holds high promises for uncovering new magnetic and topological phenomena.