A monoclinic distortion of tetragonal cell was found in the solid solutions with layered perovskite-like structure [Bi5Nb3–3xMn3xO15–δ (0.005 < х ≤ 0.06)]. In the ESR spectra absorption bands with g-factors ~4.3 and 2.1 assigned to Mn(II) and Mn(IV) atoms are recorded. The studies of magnetic susceptibility of the Bi5Nb3–3xMn3xO15–δ solid solutions revealed the formation of ferro- and antiferromagnetically bonded dimers of Mn(II), Mn(III), and Mn(IV) atoms. The exchange parameters in dimers and the distribution of paramagnetic manganese atoms in dependence to solid solution concentrations were calculated.

Original languageEnglish
Pages (from-to)2251-2257
Number of pages7
JournalRussian Journal of General Chemistry
Volume87
Issue number10
DOIs
StatePublished - 1 Oct 2017

    Research areas

  • Aurivillius phases, bismuth niobate, ESR, heterovalent isomorphism, magnetic susceptibility, solid solutions

    Scopus subject areas

  • Chemistry(all)

ID: 10252989