Abstract:
The genesis of the electronic spectrum and magnetic properties of a high-temperature cubic phase of SrFeO3−δ with the disordered distribution of oxygen vacancies under the variation of their concentration has been studied in the coherent-potential approximation within the LDA+U formalism. Experimental tendencies of the fundamental electron-energy and magnetic characteristics in SrFeO3−δ under the variation of oxygen nonstoichiometry within the homogeneity region, 0⩽δ⩽0.5, have been described.
Citation:
V. Zainullina, M. A. Korotin, V. L. Kozhevnikov, “Genesis of the electronic spectrum and magnetic properties of a high-temperature phase of nonstoichiometric strontium ferrite SrFeO3−δ (0⩽δ⩽0.5)”, Pis'ma v Zh. Èksper. Teoret. Fiz., 104:4 (2016), 270–276; JETP Letters, 104:4 (2016), 269–274