1 research outputs found
Nucleation-Induced Self-Assembly of Multiferroic BiFeO<sub>3</sub>–CoFe<sub>2</sub>O<sub>4</sub> Nanocomposites
Large
areas of perfectly ordered magnetic CoFe<sub>2</sub>O<sub>4</sub> nanopillars
embedded in a ferroelectric BiFeO<sub>3</sub> matrix were successfully
fabricated via a novel nucleation-induced
self-assembly process. The nucleation centers of the magnetic pillars
are induced before the growth of the composite structure using anodic
aluminum oxide (AAO) and lithography-defined gold membranes as hard
mask. High structural quality and good functional properties were
obtained. Magneto-capacitance data revealed extremely low losses and
magneto-electric coupling of about 0.9 μC/cmOe. The present
fabrication process might be relevant for inducing ordering in systems
based on phase separation, as the nucleation and growth is a rather
general feature of these systems