Infinite-layer nickelate superconductivity in Nd0.8Sr0.2NiO2 is attributed to oxygen pπ hole pairing via correlated hopping, with a predicted large Tc increase under compressive epitaxial strain.
Azuma et al, ‘Superconductivity at 110 K in the infinite-layer compound ( Sr1−xCa x)1−yCuO2’, Nature 356, 775-776 (1992)
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Hole superconductivity in infinite-layer nickelates
Infinite-layer nickelate superconductivity in Nd0.8Sr0.2NiO2 is attributed to oxygen pπ hole pairing via correlated hopping, with a predicted large Tc increase under compressive epitaxial strain.