Quantum calculations predict 50K superconductivity in layered nickelates

Researchers from Northwest University, University of Hyogo, and Kyushu Institute of Technology have performed quantum calculations predicting superconductivity exceeding 50 Kelvin in specifically engineered layered nickelates. The work demonstrates a method to introduce electrons into nickelate superconductors by intercalating insulating layers, such as LaAlO3, into La2NiO4, without creating disorder. This process releases carriers into the Ni-3d orbitals, positioning the material for superconductivity. The same approach also enables electron doping of La3Ni2O7, a superconductor currently receiving significant attention. Calculations predict superconductivity exceeding 50 Kelvin in specifically layered nickelate structures. Researchers from Northwest University, University of Hyogo, and Kyushu Institute of Technology have performed quantum calculations demonstrating a pathway to achieve this by precisely interleaving layers of different materials, a technique known as heterostructuring, to introduce electrons into the nickelate’s atomic structure. This…