On the possibility of incorporation of the iron impurity into A sites in SrTiO-=SUB=-3-=/SUB=-

The local environment and oxidation state of the Fe impurity in strontium titanate are studied using XAFS spectroscopy. influence annealing temperature deviation from stoichiometry on possibility incorporation into A B sites perovskite structure is studied. results obtained X-ray diffraction, XANES spectra, EXAFS spectra suggest that at high iron atoms, least partially (up to 30%), enter SrTiO 3 . agree with first-principles calculations, according which site exhibits strong off-centering (the displacement ~1 Angstrem), similar previously established samples doped Mn Co. Keywords: titanate, iron, doping, XAFS, off-center atoms.