Study of quantum oscillations in RV₆Sn₆ Kagome magnets

Kagome metals belonging to chemically diverse AB₆X₆ (A=alkali/alkali earth/rare earth, B= Transition metal, X=Si, Ge, Sn ) family have attracted tremendous recent interest due to the realization of different topological quantum phenomena such as spin polarized Dirac cones, large anomalous hall effect, Chern topological magnetism, negative magnetoresistance, and non-collinear magnetic structures. One charm of the chemical versatility of the 166 class of compounds is the ability to design materials where magnetic interactions can be tuned independently from the Kagome lattice. Nonmagnetic B-site variants such as V provide this flexibility and allow the interplay between magnetism and the Kagome-derived band structures to be explored. We are investigating the emergent electronic phenomena in RV₆Sn₆ (R=rare earth, Y) arising from the interactions between triangular planes of R-ions and the Kagome net of non-magnetic V ions. I will present the nature of Fermi surface topology and mass of Fermions based on the analysis of de Haas van Alphen oscillations in RV₆Sn₆ compounds.