In traditional metals, the temperature (T) dependence of electrical resistivity vanishes at low
or high T, albeit for different reasons. Here, we review a class of materials, known as …

We review oxygen K-edge X-ray absorption spectra of both molecules and solids. We start
with an overview of the main experimental aspects of oxygen K-edge X-ray absorption …

The search continues for nickel oxide-based materials with electronic properties similar to
cuprate high-temperature superconductors,,,,,,,,–. The recent discovery of superconductivity …

The correlated electronic structure of the infinite-layer compounds NdNiO 2 and SrCuO 2 at
stoichiometry and with finite hole doping is compared. Key differences are elucidated from …

The recent discovery of superconductivity in La3Ni2O7− δ under high pressure with a
transition temperature around 80 K (ref.) has sparked extensive experimental,,,–and …

Iridium‐based materials are among the most active and stable electrocatalysts for the
oxygen evolution reaction. Amorphous iridium oxide structures are found to be more active …

Iridium oxide based electrodes are among the most promising candidates for
electrocatalyzing the oxygen evolution reaction, making it imperative to understand their …

The recent observation of superconductivity in N d 0.8 S r 0.2 N i O 2 has raised fundamental
questions about the hierarchy of the underlying electronic structure. Calculations suggest …

Metal-insulator transitions are accompanied by huge resistivity changes, even over tens of
orders of magnitude, and are widely observed in condensed-matter systems. This article …

Theoretical ideas and experimental results concerning high-temperature superconductors
are reviewed. Special emphasis is given to calculations performed with the help of …