“…However, the Néel temperature has not been suppressed as described in the synthesis of a single crystal of herbertsmithite. 3 This result may be explained by the fact that below a critical size, magnetic particles become single domain in contrast with the usual multidomain structure of microcrystalline samples, which can exhibit unique phenomena such as unusual coercivities, 34 quantum tunneling of the magnetization, 35,36 and superparamagnetism. 37,38 Another possible explanation for this is that the size reduction of herbertsmithite could affect the novel magnetic properties, due to the small volume or the high surface/volume ratio (spin canting effect), 39,40 a phenomenon through which spins show a lack of full alignment at the surface.…”