Nd1xSrxNiO2

Nd1xSrxNiO2 is a nickelate material belonging to a class of compounds that has garnered significant scientific interest due to its potential as a superconductor. The general formula indicates that it is a solid solution where the rare earth element neodymium (Nd) is partially substituted by strontium (Sr). The core structure consists of nickel-oxygen (NiO2) layers, which are believed to be crucial for its electronic properties.

Research into these nickelate materials, including Nd1xSrxNiO2, was significantly boosted by the discovery of superconductivity in related compounds like infinite-layer nickelates. These materials exhibit a layered perovskite-like structure where the nickel atoms are in a square planar coordination with oxygen. The doping of strontium introduces charge carriers into the NiO2 planes, a common mechanism for inducing superconductivity in many transition metal oxides.

The electronic properties of Nd1xSrxNiO2 are primarily governed by the behavior of the Ni 3d electrons. Understanding the orbital occupations and interactions within these NiO2 layers is key to explaining the emergence of superconductivity. While Nd1xSrxNiO2 itself may not be the primary focus of superconductivity research, it represents a part of the broader exploration of how doping and structural modifications in nickelate compounds can lead to novel electronic phases, including superconductivity at potentially higher temperatures than previously observed in cuprates. The precise superconducting properties and the exact conditions under which they manifest are areas of ongoing investigation.