Study of the Magnetic Interactions Between Metal Nanodeposits in Porous Silicon

In this paper, the magnetic interactions between metal nanostructures deposited within the pores of porous silicon will be elucidated. The influence of the morphology of the porous silicon which means a variation between high, medium, and low dendritic pore-growth as well as the morphology of the metal deposits (geometry, distribution and correlated branches to the template, respectively) on the magnetic behavior will be figured out. An increase in the uniformity of the pores resulting in smoother metal deposits leads to an increase in the coercivity of the nanocomposite which reveals less cross-talk between the nanostructures due to a modification of the stray fields. Also superparamagnetic nanoparticles of different sizes are incorporated within the pores and the dipolar coupling between them with regard to their sizes and their arrangements are investigated.