  The present paper deals with the systematic growth of plasmonic gold
nanoparticles (Au NPs) on molybdenum disulphide (MoS$_2$) nanosheets as well as
the effect of Au NPs on the optical and magnetic properties. The crystalline
nature of the nanocomposites is confirmed by X-ray diffraction and transmission
electron microscopic techniques. The optical properties are characterized using
absorption and Raman spectroscopic techniques. The electron paramagnetic
resonance technique is used to study the magnetic response of the
nanocomposites. The paper attempts to gain a fundamental understanding of the
two-dimensional nanomaterial-based composites for their applications in the
magnetic and optical devices.
