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- W3129016950 abstract "Ceramic samples of Tb2FeCoO6 were synthesized by the solid-state reaction recipe. The crystallographic analysis revealed that the material crystallizes into a complex perovskite-type orthorhombic structure (space group P21/n, # 14) with octahedral distortions. The surface topography of the material was evaluated by means of scanning electron microscopy, observing densified submicrometric granular characteristics in the form of polyform sheets. Energy scattering spectra showed 98% agreement between the experimental composition and the stoichiometry of the Tb2FeCoO6 formula. The DC magnetization curves as a function of temperature exhibit irreversible behavior at low temperatures related to the distortionary character of the Fe–O6 and Co–O6 octahedra in the structure. Magnetization hysteresis curves as a function of the applied field at temperatures from 5 K up to 300 K reveal a ferromagnetic type ordering in the material. The I–V characteristic suggests a semiconductor electrical response with a varistor-type tendency and strong dependence of the polycrystalline nature of the samples. Calculations of band structure and density of electronic states predict the semiconductor characteristic for this double perovskite, with Eg = 2.48 eV and the ferromagnetic behavior is attributed to extended super-exchange spin interaction in the Fe–O–Co ions. The ferromagnetic semiconductor nature of the Tb2FeCoO6 material foresees potential applications in the novel spintronics industry." @default.
- W3129016950 created "2021-02-15" @default.
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- W3129016950 date "2021-05-01" @default.
- W3129016950 modified "2023-09-26" @default.
- W3129016950 title "Crystalline, ferromagnetic-semiconductor and electronic features of the terbium-based cobalt-ferrite Tb2FeCoO6" @default.
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- W3129016950 doi "https://doi.org/10.1016/j.ceramint.2021.02.020" @default.
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