Structural and magnetic characterization of BaTiO3–BaFe12O19 bilayer thin films: Interface effects on the magnetic properties of barium hexaferrite layer

Impacts of diffusive ion migration on ferroelectric properties in BaTiO3 composite

“…In addition to the scarcity of their natural occurrence, their magnetoelectric (ME) response obtained are at temperatures that are too low for practical applications [1,2] making researchers to shift their area of interest from single phase to composite multiferroics [3,4]. The ME effect in these composites is several times larger compared to those of intrinsic (single phase) multiferroics [5], which is also a contributing factor to the interest gained by these materials. Multiferroics and ME composite materials are very strong candidates for multifunctional devices such as spintronics, energy harvesters, energy storage, ME memory storage devices, actuators, miniaturized electronics and many more [6][7][8][9][10][11].…”

Dependence of the Structural and Magnetic Properties on the Growth Sequence in Heterostructures Designed by YbFeO3 and BaFe12O19

“…Different devices were recently produced by combining barium ferrite BaFe 12 O 19 (BaM) with ferroelectric materials to form multiferroic systems with magneto-electric coupling at the well-defined and characterized interface in terms of sharpness, atomic step, and chemical interdiffusion. It has covered thin-film heterostructures such as SrBa 2 Ta 2 O 9 /BaM [ 1 , 2 ], Ba 2 EuFeNb 4 O 15 /BaM [ 3 , 4 ], multilayers composed of BaM layers with Pb(Zr,Ti)O 3 (PZT) [ 5 ] or (Ba,Sr)TiO 3 (BST) [ 6 , 7 , 8 ] or BaTiO 3 perovskite layers [ 9 ], and multiferroic composites [ 10 , 11 , 12 ]. BaM is a very attractive material due to the high anisotropy H a and coercivity H C fields [ 13 , 14 ], which are beneficial for obtaining performant film in perpendicular recording media.…”

“…The investigation by Vafaee et al [ 32 ] into La 0.7 Sr 0.3 MnO 3 /BiFeO 3 (LSMO/BFO) heterostructures revealed the absence of an EB coupling for multistacks with a sharp interface, whereas a sizable EB coupling was observed for (LSMO/BFO) heterostructures with rough and chemically mixed interfaces [ 41 , 42 , 43 , 44 , 45 , 46 , 47 ]. Furthermore, the structural misfit at the heterointerfaces in other types of multifunctional heterostructures (e.g., BaFe 12 O 19 /BaTiO 3 [ 9 ], La 0.7 Sr 0.3 MnO 3 /BiFeO 3 [ 32 ], LaMnO 3 /LaFeO 3 [ 33 ], LaMnO 3 /LaNiO 3 [ 48 ]) was tuned by the material combination as well as by the growth sequence with the goal to modify the exchange interaction [ 9 , 32 , 33 , 48 ].…”