Self-organization of ultrahigh-density Fe–Ni–Co nanocolumns in Teflon® AF

We demonstrate a single-step and powerful method based on vapor-phase codeposition to fabricate self-organized, ultrahigh-density Fe–Ni–Co nanocolumnar structures in a Teflon® AF matrix. It is shown that at certain deposition parameters the structure of the metal-polymer nanocomposite changes from a cluster to a nanocolumnar morphology. These mostly monodisperse nanocolumns have an average diameter of around 6nm separated by ∼4nm Teflon® AF and were fabricated so far with aspect ratios of up to 30.