The surprisingly high activation barrier for oxygen-vacancy migration in oxygen-excess manganite perovskites
Jacqueline M. Börgers, Roger A. De Souza
Abstract
in manganite perovskites containing cation vacancies will depend strongly on oxygen partial pressure (contrary to the standard assumption). The implications of our results for modelling the point-defect chemistry of, and oxygen diffusion in, manganite perovskites are discussed.
Topics & Concepts
ManganiteOxygenActivation barrierMaterials scienceCondensed matter physicsChemical physicsVacancy defectChemistryPhysicsComputational chemistryDensity functional theoryFerromagnetismOrganic chemistryElectronic and Structural Properties of OxidesMagnetic and transport properties of perovskites and related materialsAdvancements in Solid Oxide Fuel Cells