Transport and magnetic properties of cobalt disulfide prepared by solid state hybrid microwave heating and hot pressing

Abstract

In this study, single phase cobalt disulfide [Formula: see text] was synthesized by temperature-controlled solid state hybrid microwave heating. The structure, composition and morphology of the obtained samples were studied using X-ray diffraction (XRD), scanning electron spectroscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and high resolution transmission electron microscopy (HRTEM), respectively. The loose [Formula: see text] polycrystalline precursor was then hot pressed to dense bulk sample. The subsequent transport and magnetic properties measurements reveal the ferromagnetic Curie temperature at the magnetic transition near 128 K. These results suggest that the magnetic transition in [Formula: see text] is susceptible to the preparation conditions and the microstructure of the samples.