paper

Possible high Superconductivity in LaNiO under High Pressure through Manifestation of a Nearly-Half-Filled Bilayer Hubbard Model

arXiv:2306.06039 · doi:10.1103/PhysRevLett.132.106002

Abstract

Inspired by a recent experiment showing that LaNiO exhibits high superconductivity under high pressure, we theoretically revisit the possibility of superconductivity in this material. We find that superconductivity can take place which is essentially similar to that of the bilayer Hubbard model consisting of the Ni orbitals. Although the coupling with the orbitals degrades superconductivity, can still be high enough to understand the experiment thanks to the very high reached in the bilayer Hubbard model.

3 figures, 6 pages

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