Neutron Scattering and magnetization studies of Ba${}_2$Cu${}_{2.95}$Co${}_{0.05}$O${}_4$Cl${}_2$: A decorated two-dimensional antiferromagnet

M. K. Ramazanoglu, P. S. Clegg, S. Wakimoto +2

Ba${}_2$Cu${}_3$O${}_4$Cl${}_2$ has two inter-penetrating square Cu sublattices, one with square root 2 times the in-plane spacing of the other. Isotropic magnetic interactions between the…