Large magnetodielectric coupling in the vicinity of metamagnetic transition in $6H-$perovskite Ba${}_3$GdRu${}_2$O${}_9$

S. Chhillar, K. Mukherjee, C. S. Yadav

The 6H-perovskites Ba${}_3$RRu${}_2$O${}_9$ (R = rare earth element) demonstrate the magnetodielectric (MD) coupling as a manifestation of $4d-4f$ magnetic interactions. Here, we have…