Thin films sputtered from Ba2NdFeNb4O15 multiferroic targets on BaFe12O19 coated substrates. (September 2016)

• Record Type: Journal Article
• Authors: Bodeux, Romain; Michau, Dominique; Maglione, Mario; Josse, Michaël
• Is Part Of: Materials research bulletin. Volume 81(2016)
• Page Start: 49
• Page End: 54
• Publication Date: 2016-09
• Subjects: A. Magnetic materials -- A. Multilayers -- B. Sputtering -- C. Impedance spectroscopy -- D. Multiferroics; Materials -- Periodicals; Crystal growth -- Periodicals; Matériaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Crystal growth; Materials; Periodicals; 620.11
• DOI: 10.1016/j.materresbull.2016.04.027
• Languages: English
• ISSNs: 0025-5408

Abstract

Graphical abstract: Highlights: Synthesis of Ba2 NdFeNb4 O15 /BaFe12 O19 (BaM) heterostructures by RF magnetron sputtering. Growth of TTB layer were retained regardless of the underlayer (Pt bottom electrode or BaM). Dielectric and magnetic properties were obtained from the Pt/TTB/BaM/Pt stacks. Abstract: Ba2 NdFeNb4 O15 tetragonal tungsten bronze (TTB)/BaFe12 O19 (BaM) hexaferrite bilayers have been grown by RF magnetron sputtering on Pt/TiO2 /SiO2 /Si (PtS) substrates. The BaM layer is textured along (0 0 1) 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., ε ∼ 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.