Nanoporous FePd alloy as multifunctional ferromagnetic SERS-active substrate

Nanoporous materials represent a unique class of materials, given to their unforeseen magnetic, mechanical, optical and catalytic properties arising from network pores ligaments. Here polycrystalline thin film FePd is considered as starting system, in which the porosity induced via dealloying. This process determines removal iron alloy diffusion palladium on surface, turn influences evolution material’s composition, magnetic properties. In addition, point view, material acquires more isotropic behaviour while moment decreases due iron. same way, there an improvement surface enhanced Raman scattering dealloying proceeds, formation clusters surface. mixture properties, combined with its high corrosion resistance biocompatibility, gives system strong multifunctional connotation, paving way for new applications, ranging trapping detection low concentration molecules.