“…Though this process enables the deposition of FePt one monolayer at a time over large areas, the monolayer coverage is limited and self-assembly process of the FePt NPs is inhibited by the strong interaction between the nanoparticles and coupling layer. LB technique was also used to fabricate monolayer of 4 nm FePt NPs on glass substrate [19]. However, the homogeneity of the monolayer is not directly observed.…”