Materials Research Bulletin, Vol.81, 49-54, 2016
Thin films sputtered from Ba2NdFeNb4O15 multiferroic targets on BaFe12O19 coated substrates
Ba2NdFeNb4O15 tetragonal tungsten bronze (TTB)/BaFe12O19(BaM) hexaferrite bilayers have been grown by RF magnetron sputtering on Pt/TiO2/SiO2/Si (PtS) substrates. The BaM layer is textured along (001) while the TTB layer is multioriented regardless of the PtS or BaM/PtS substrate. Dielectric properties of TTB films are similar to those of bulk, i.e., epsilon similar to 150 and a magnetic hysteresis loop is obtained from TTB/BaM bilayers, thanks to the BaM component. This demonstrates the possibility of transferring to 2 dimensional structures the composite multiferroic system TTB/BaM previously identified in 3 dimensional bulk ceramics. (C) 2016 Published by Elsevier Ltd.