Magnetic dilution method upon solving the problem of electron structure of lanthanum gallate doped with chromium, strontium, and magnesium

► The degree of oxidation of chromium atoms remains the same (+3) upon doping lanthanum gallate with strontium and/or magnesium. ► An increase in chromium atom clustering in the matrix was found depending on the nature and quantity of the doping atoms. ► The clusters of chromium atoms necessary include the doping diamagnetic atoms and vacancies in the oxygen sublattice.