Architectured columns with a metal-dielectric periodic nanostructure

We engineer a sputter deposited metal/oxide periodic structure based on W and Ta, and corresponding oxides with tuneable alternations from a few nanometers to a few tens nanometers, combined with the preparation of inclined, zigzag and spiral columns. This work shows how bi-component periodic multilayers can be produced within some inclined nano-columns exhibiting oriented, zigzag and helix structures. This unique combination of controlled columnar structure and periodic multilayers enables new opportunities to create some unusual structural designs for functional materials.