Magnetic hexamers interacting in layers in the (Na,K)${}_2$Cu${}_3$O(SO${}_4{)}_3$ minerals

Diana O. Nekrasova, Alexander A. Tsirlin, Marie Colmont +3

Magnetic properties and underlying magnetic models of the synthetic A${}_2$Cu${}_3$O(SO${}_4{)}_3$ fedotovite (A = K) and puninite (A = Na) minerals, as well as the mixed euchlorine-type N…