Effects of Cr doping on the superconductivity and magnetism of FeTe0.8S0.2

Abstract We investigate the effects of Cr doping on the superconductivity and magnetism of layered compound FeTe0.8S0.2, and find evidences for coexistence of ferromagnetism and superconductivity in the Cr-doped system. X-ray diffraction (XRD) spectra suggest that Cr dopants in Fe1-xCrxTe0.8S0.2 for x = 0.02, 0.04 and 0.06 primarily enter the sites in-between the FeTe1-ySy (0