6533b837fe1ef96bd12a2675

RESEARCH PRODUCT

Mössbauer and TEM studies of the perovskite system (1-y)La2/3 $$A$$ 1/3TiO3·yLaFeO3

V. KraševecD. HanželDarko HanželW. Meisel

subject

inorganic chemicalsNuclear and High Energy Physicseducation.field_of_studyChemistryInorganic chemistryPopulationCondensed Matter PhysicsAtomic and Molecular Physics and OpticsFerrousIonCrystallographyVacancy defectLattice (order)Mössbauer spectroscopymedicineFerricPhysical and Theoretical ChemistryPhase analysiseducationmedicine.drug

description

The microscopic nature of the Mossbauer phase analysis has been found as being particularly valuable in testing assumptions suggested by TEM results regarding the microdomain structure and the population of different lattice sites by iron ions in the perovskite system (1-y)La2/3\(A\)1/3TiO3·yLaFeO3 with 0.04<y < 0.25 (\(A\) is an A-site vacancy). This system was found to contain only Fe3+-phases which are stable under normal conditions, but moderate heating in vacuo causes a partial reduction of ferric ions to ferrous ions.

https://doi.org/10.1007/bf02065728