Magnetic model for Ba_2Cu_3O_4Cl_2
arXiv:cond-mat/9711243 · doi:10.1016/S0304-8853(97)00283-7
Abstract
Ba_2Cu_3O_4Cl_2 consists of two types of copper atoms, Cu(A) and Cu(B). We study the corresponding Heisenberg model with three antiferromagnetic couplings, J_AA, J_BB and J_AB. We find interesting frustration effects due to the coupling J_AB.
6 pages, LaTeX, 3 eps figures, to appear in JMMM