Efficient energy and memory storage capabilities in optimized BiFeO/MnMoO/NiFeO triphasic composites for futuristic multistate devices.

The emergence of multiferroic materials particularly bismuth iron oxide (BiFeO) with distinctive magnetoelectric, and high energy storage capabilities, present pivotal aspects for next-generation memory storage devices. However, intrinsically weak magnetoelectric coupling limits their widespread applications, that can be leap over by the integration of BiFeO with enriched ferroelectric, and ferro/ferrimagnetic materials. Here, a series (1 - )[0.7BiFeO + 0.3MnMoO] + NiFeO ( = 0.00, 0.03, 0.06, and 0.09) is synthesized citrate-gel based self-ignition, and solid-state reaction routes. Phase purity and crystallinity of tri-phase composites with surfaces revealing random and arbitrarily shaped grains are assured by X-ray diffraction, and field emission scanning electron microscopy, respectively. Dielectric studies illustrated non-linear trend for broad range of frequencies as predicted by Maxwell-Wagner theory along with single semicircle arcs in Nyquist plots that exposes grain boundaries effect. An enriched 68.42% of ferroelectric efficiency is featured for = 0.06 substitutional contents, while magnetic computations demonstrated improved saturation magnetization ( ), remanence magnetization ( ), and coercive applied magnetic field ( ) values as 5.87 emu g, 0.96 emu g, and 215.19 Oe, respectively for = 0.09 phase-fraction. The intriguing linear trends of magnetoelectric coupling for all the compositions are corroborating them propitious contenders for futuristic multistate devices.