Room-temperature M - H , ZFC, and FC curves. (a) Room-temperature M-H curves for MoS2 pristine powders and nanosheets. (b) M-H curves for MoS2 nanosheets measured at 10 and 300 K: the DM signals of the samples have been deducted. (c) The dependence of the saturation magnetization of the MoS2 nanosheets on sonication time. (d) The ZFC and FC curves for the exfoliated MoS2 nanosheets sonicated in DMF for 10 h.