Work

Unconventional pressure-dependent interorbital and interlayer doping in superconducting nickelates

Year: 2024

Type: article

Abstract: The discovery of nickelate superconductivity provided the first example of a non-copper-based material with superconductivity strongly analogous to the cuprates. However, recent findings raise questions and inconsistencies around the electron counts and doping phase diagrams. We show using superconducting ${\mathrm{La}}_{4}{\mathrm{Ni}}_{3}{\mathrm{O}}_{10}$ that there are unconventional interlayer and interorbital intrinsic doping effects that render the ${d}_{{x}^{2}\ensuremath{-}{y}^{2}}$ occupation similar to the cuprates. The results enable a consistent framework for nickelate superconductivity, while maintaining the connection between cuprate and nickelate superconductors.

Source: Physical review. B./Physical review. B

DOI: 10.1103/physrevb.110.174501

Authors: Y. N. Huang, David J. Singh

Institutions: Zhejiang University of Science and Technology, University of Missouri

Language: English

Topic: Physics of Superconductivity and Magnetism

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: National Natural Science Foundation of China

Award: G5104106186