Antiferromagnetic order and superlattice structure in nonsuperconducting and superconducting RbyFe(1.6+x)Se2

Meng Wang, Miaoyin Wang, G. N. Li +18

Neutron diffraction has been used to study the lattice and magnetic structures of the insulating and superconducting Rb${}_y$Fe${}_{1.6+x}$Se${}_2$. For the insulating Rb${}_y$Fe$_{1.6+x…