This review stands in the larger framework of functional materials by focussing on
heterostructures of rare-earth nickelates, described by the chemical formula RNiO 3 where R …

The electronic structure of transition metal oxides featuring correlated electrons can be
rationalized within the Zaanen-Sawatzky-Allen framework. Following a brief description of …

Gauss's law dictates that the net electric field inside a conductor in electrostatic equilibrium
is zero by effective charge screening; free carriers within a metal eliminate internal dipoles …

Abstract Perovskite‐structured (ABO3) transition metal oxides are promising bifunctional
electrocatalysts for efficient oxygen evolution reaction (OER) and oxygen reduction reaction …

At interfaces between conventional materials, band bending and alignment are classically
controlled by differences in electrochemical potential. Applying this concept to oxides in …

Point defects, such as oxygen vacancies, control the physical properties of complex oxides,
relevant in active areas of research from superconductivity to resistive memory to catalysis …

Epitaxial strain can cause both lattice distortion and oxygen nonstoichiometry, effects that
are strongly coupled at heterojunctions of complex nickelate oxides. Here we decouple …

High entropy oxides (HEOs) are a class of materials, containing equimolar portions of five or
more transition metal and/or rare-earth elements. We report here about the layer-by-layer …

The functional properties of oxide heterostructures ultimately rely on how the electronic and
structural mismatches occurring at interfaces are accommodated by the chosen materials …

High entropy oxides (HEOs), which contain multiple elements in the same crystallographic
site, are a promising platform for electrocatalysis in oxygen evolution reaction (OER) …