Genesis of the electronic spectrum and magnetic properties of a high-temperature phase of nonstoichiometric strontium ferrite SrFeO3–δ (0 ≤ δ ≤ 0.5)


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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.

About the authors

V. M. Zainullina

Institute of Solid State Chemistry, Ural Branch

Author for correspondence.
Email: veronika@ihim.uran.ru
Russian Federation, Yekaterinburg, 620990

M. A. Korotin

Mikheev Institute of Metal Physics, Ural Branch

Email: veronika@ihim.uran.ru
Russian Federation, Yekaterinburg, 620990

V. L. Kozhevnikov

Institute of Solid State Chemistry, Ural Branch

Email: veronika@ihim.uran.ru
Russian Federation, Yekaterinburg, 620990

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