Interplay of iron and rare-earth magnetic order in rare-earth iron pnictide superconductors under magnetic field

Yang Lei-Lei¹, Liu Da-Yong^{1, †,}, Chen Dong-Meng², Zou Liang-Jian^{1, 3, ‡,}

(a) Sketch of the square-lattice cluster adopted in our Cluster-SCF approach, and (b) phase diagram of J₁–J₂ spin-1/2 Heisenberg model obtained by our Cluster-SCF method.