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January 26, 2026npj Quantum MaterialsOpen Access

Interlayer pairing in bilayer nickelates

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Authors

TMThomas A. MaierOak Ridge National LaboratoryPDPeter DoakOak Ridge National LaboratoryLLLing-Fang LinUniversity of Tennessee at Knoxville

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Implication

Quantum Monte Carlo calculations reveal superconducting pairing behavior in bilayer nickelates, suggesting new insights for high-temperature superconductors.

Key Points

  • This research aims to explore the superconducting pairing mechanisms in bilayer nickelates under pressure.
  • Utilized dynamic cluster approximation quantum Monte Carlo calculations.
  • Analyzed a bilayer two-orbital Hubbard-Hund model reflecting Ni e g states.
  • Investigated magnetic and superconducting pairing behavior at varying temperatures.
  • Identified a leading s ± superconducting instability at approximately 100 K.
  • Discovered that the pairing interaction primarily involves local interlayer pairs of the d3z2-r2 orbital.
  • Established a correlation between the strength of the interaction and magnetic spin fluctuations.

Cite This Study

Maier et al. (2026) studied this question.

synapsesocial.com/papers/697703af722626c4468e8bdchttps://doi.org/10.1038/s41535-026-00849-9
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