Stilbazolium-MPS3 nanocomposites with large second-order optical nonlinearity and permanent magnetization

Since the observation that a single crystal of quartz could frequency-double the output of a ruby laser (1), the search for nonlinear optical (NLO) materials has been motivated by the [...]
Intercalated layered materials comprising an organic dye and inorganic [MPS.sub.3] [where M is either the manganese ion ([Mn.sup.2+]) or the cadmium ion ([Cd.sup.2+])] phases have been prepared. The intercalation process induces a spontaneous poling, giving rise to an efficiency of 750 times that of urea in second-harmonic generation for the cadmium derivative. In addition, the manganese derivative displays a permanent magnetization below 40 kelvin. Thus, these materials exhibit both a large optical nonlinearity and magnetic ordering.