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, ‡,}

Dependence of magnetization components, M_a and M_b, of Eu²⁺ ions and of Fe²⁺ ions on magnetic field (a) and (c) H ∥ a and (b) and (d) H ∥ c in EuFe₂As₂.