Synthesis and characterization of magnetic iron sulfide nanowires

Abstract

Large quantities of Fe_1−xS (x=0.12 and 0.1–0.08) nanowires have been prepared by the thermal decomposition of a hybrid precursor, Fe_1−xS(en)_0.5 (x=0.2−0.3, en=ethylenediamine). Removal of the amine from Fe_1−xS(en)_0.5 at 200 and 300 °C under Ar flow yields Fe₇S₈ and Fe_1−xS (x≈0.09) nanowires, respectively, with well-defined morphologies. The Fe₇S₈ nanowires are ferrimagnetic at room temperature.