Magnetic susceptibilities in a family of S=1/2 Kagome antiferromagnet

T. Ono, K. Morita, M. Yano +5

Hexagonal antiferromagnets Cs${}_2$Cu${}_3$MF${}_{12}$ (M = Zr, Hf and Sn) have uniform Kagome lattices of Cu${}^{2+}$ with S = 1/2, whereas Rb${}_2$Cu${}_3$SnF${}_{12}$ has a 2a by 2a enlarged…