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Multiferroic materials, which show simultaneous ferroelectric and magnetic ordering, exhibit unusual physical properties–and in turn promise new device applications–as a result of the coupling between their dual order parameters. BiFeO 3  is currently considered the most promising candidate material for device applications of room temperature multiferroics. However, its G-type antiferromagnetic behavior and high Néel temperature restrict the use of this material in potential applications. We report the synthesis and characterization of a novel Bi 2 FeNiO 6  material for the first time using a citric acid assisted gel combustion technique. Magnetization studies reveal that it exhibits ferrimagnetism with Néel temperature around 500 K. Differential scanning calorimetry study also reveals a sharp phase transition at 500 K. These materials also exhibit good ferroelectric behavior with square type hysteresis with a remanent polarization ( P  r ) of 1.28 μC cm −2 , saturation polarization ( P  s ) of 18 μC cm −2  and coercive fields 20 kV and–40 kV respectively. The results are convincing to make a big step towards developing devices that run on spin.

Synthesis and characterization of new Bi 2 FeNiO 6 material using a citric acid assisted gel combustion technique