Our paper appeared today unveiling a unidirectional spin density wave state in electron-doped Sr2IrO4. Resonant x-ray scattering experiments were able to detect a spin modulation that forms along the Ir-Ir bond diagonal in this system once a coherent Fermi surface is established.  This forms an electronically phase separated state that mirrors the magnetic state observed in hole-doped high-Tc cuprates at very low doping levels.