Complex magnetic behavior of the sawtooth Fe chains in Rb${}_2$Fe${}_2$O(AsO${}_4$)${}_2$

V. O. Garlea, L. D. Sanjeewa, M. A. McGuire +4

Results of magnetic field and temperature dependent neutron diffraction and magnetization measurements on oxy-arsenate Rb${}_2$Fe${}_2$O(AsO${}_4$)${}_2$ are reported. The crystal…