Tunning pore filling of anodic alumina templates by accurate control of the bottom barrier layer thickness C T Sousa1, D C LeitA o2, M P ProenA a1, A ApolinA rio1, J G Correia3, J Ventura1 and J P AraAojo1 [email protected] 1 IFIMUP and IN-Institute of Nanoscience and Nanotechnology, Department of Physics and Astronomy, Faculdade de CiAancias da …