Interplay of iron and rare-earth magnetic order in rare-earth iron pnictide superconductors under magnetic field
Yang Lei-Lei1, Liu Da-Yong1, †, , Chen Dong-Meng2, Zou Liang-Jian1, 3, ‡,
       

Schematic clusters of (a) RFe2As2 (R = Eu) and (b) RFeAsO (R = Ce, Pr, Nd, Sm, Gd, and Tb). All the magnetic exchange couplings are denoted.