Influence of heterostructure on structure, electric and magnetic properties of Bi_0.5(Na_0.80,K_0.20)_0.5TiO₃/BaZrO₃ films prepared by the sol–gel method

Abstract

This study reports on structure, electric and magnetic properties of the BNKT/BZO heterolayered films synthesized via chemical solution deposition on Pt/Ti/SiO2/Si substrates. The influence of different heterolayered configurations on the microstructure, electric and magnetic properties of the films was investigated thoroughly. Magnetic properties and leakage current density (J) of the films were expressively improved thanks to the heterolayered structures. Heterolayered films M42 yield highest Ms and Mr values of 14.4 emu/cm3 and 1.7 emu/cm3, respectively about 3 times higher than multilayered BNKT. Thanks to heterolayered structures, J decreases strongly from 16.0x10-4 A/cm2 for BNKT films to 1.4x10-4 A/cm2 for heterolayered films M42. Obtained results show that the BNKT/BZO heterolayered films may become environmentally-friendly applicants for multifunction devices.

Augmentation of optical and magnetic characteristics at ambient temperature in bismuth ferrite-titanium (BiFe1–xTixO3) multiferroic compounds

“…This interaction is believed to be an outcome of the stochastic dispersion of Ti 4+ cations throughout the native lattice structure of BFO. Consequently, the observed magnetization may be explained by both surface phenomena and intrinsic selfdefects, as referenced in the literature [37]. Coey and colleagues have reported a substantial impact of the effective radius of hybrid orbitals on the interaction strength between magnetic ions through oxygen vacancies [38,39].…”