High-temperature transition in SrFeO2.5: LSDA+U simulation Veronika M. Zainullina, Michael A. Korotin, Ilia A. Leonidov and Viktor L. Kozhevnikov Eur. Phys. J. B, 88 10 (2015) 268 Published online: 21 October 2015 DOI: 10.1140/epjb/e2015-60427-4