Crystal structure, physicochemical, and sensory properties of solid solutions Bi1-xLaxFe1-xCoxO3 (x=0, 0.05, 0.1)

For the first time, the synthesis was carried out and the physicochemical properties of solid solutions based on the multiferroic BiFeO3 were studied. It was found that the samples were characterized by a rhombohedrally distorted perovskite structure. It was shown that a slight isovalent substitution of Bi3+ ions by La3+ ions and Fe3+ ions by Co3+ ions in BiFeO3 (x <= 0.10) leads to an increase in the specific magnetization. This can be attributed to structural distortions and causes weak ferromagnetism to occur. The studied samples are p-type semiconductors and have good sensory properties even without catalysts. It was found that the maximum values of the S response were obtained at temperatures close to the ferromagnetic Curie temperature, the value of which is consistent with the studies of electrical properties.

Automated summary

The study found that substituting ions in BiFeO3 can increase specific magnetization and induce weak ferromagnetism, while the samples also exhibit good sensory properties.