3D oxygen vacancy distribution and defect-property relations in an oxide heterostructure.

ABSTRACT: Oxide heterostructures exhibit a vast variety of unique physical properties. Examples are unconventional superconductivity in layered nickelates and topological polar order in (PbTiO₃)_n/(SrTiO₃)_n superlattices. Although it is clear that variations in oxygen content are crucial for the electronic correlation phenomena in oxides, it remains a major challenge to quantify their impact. Here, we measure the chemical composition in multiferroic (LuFeO₃)₉/(LuFe₂O₄)₁ superlattices, mapping correlations between the distribution of oxygen vacancies and the electric and magnetic properties. Using atom probe tomography, we observe oxygen vacancies arranging in a layered three-dimensional structure with a

SUBMITTER: Hunnestad KA 

PROVIDER: S-EPMC11208508 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature