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 …

We present a theory describing the local electronic properties of the perovskite rare-earth
nickelates—materials which have negative charge transfer energies, strong O 2 p–Ni 3 d …

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 effects of strain and oxygen vacancies on perovskite thin films have been studied in
great detail over the past decades and have been treated separately from each other. While …

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

Tuning the electronic properties of a matter is of fundamental interest in scientific research
as well as in applications. Recently, the Mott insulator-metal transition has been reported in …

Deterministic control over the periodic geometrical arrangement of the constituent atoms is
the backbone of the material properties, which, along with the interactions, define the …

Metal-to-insulator phase transitions in complex oxide thin films are exciting phenomena
which may be useful for device applications, but in many cases the physical mechanism …