Superconducting Instabilities in Strongly-Correlated Infinite-Layer Nickelates

Abstract

The discovery of superconductivity in infinite-layer nickelates has added a new family of materials to the fascinating growing class of unconventional superconductors. By incorporating the strongly correlated multi-orbital nature of the low-energy electronic degrees of freedom, we compute the leading superconducting instability from magnetic fluctuations relevant for infinite-layer nickelates. Specifically, by properly including the doping dependence of the Ni $d_{x^2-y^2}$ and $d_{z^2}$ orbitals as well as the self-doping band, we uncover a transition from $d$-wave pairing symmetry to nodal $s_{\pm }$ superconductivity, driven by strong fluctuations in the $d_{z^2}$-dominated orbital states. We discuss the properties of the resulting superconducting condensates in light of recent tunneling and penetration depth experiments probing the detailed superconducting gap structure of these materials.

7 pages, 4 figures, supplement included

References in corpus (18)

• A superconducting praseodymium nickelate with infinite layer structure
• Late transition-metal oxides with infinite-layer structure: Nickelates versus cuprates
• Two-Orbital Model Explains the Higher Transition Temperature of the Single-Layer Hg-Cuprate Superconductor Compared to That of the La-Cuprate Superconductor
• Rotationally-invariant slave-boson formalism and momentum dependence of the quasiparticle weight
• Nickelate superconductors $--$ Multiorbital nature and spin freezing
• Synthesis and characterization of bulk Nd1-xSrxNiO2 and Nd1-xSrxNiO3
• Charge and spin order dichotomy in NdNiO${}_2$ driven by SrTiO${}_3$ capping layer
• Orbital Selective Superconductivity in a Two-band Model of Infinite-Layer Nickelates
• Multiorbital processes rule the Nd${}_{1-x}$Sr${}_x$NiO${}_2$ normal state
• Dynamical Mean Field Studies of Infinite Layer Nickelates: Physics Results and Methodological Implications
• Superconductivity and Antiferromagnetism in NdNiO${}_2$ and CaCuO${}_2$: A Cluster DMFT Study
• Spin and Orbital Characters of Excitations in Iron Arsenide Superconductors Revealed by Simulated Fe L-Edge RIXS
• Universality of scanning tunneling microscopy in cuprate superconductors
• Microscopic Theory of Superconducting Phase Diagram in Infinite-Layer Nickelates
• Orbital-dependent self-energy effects and consequences for the superconducting gap structure in multi-orbital correlated electron systems
• Two-orbital model for possible superconductivity pairing mechanism in nickelates
• Theory of spin-excitation anisotropy in the nematic phase of FeSe obtained from RIXS measurements
• Magnetic excitations in infinite-layer nickelates

Cited by in corpus (32)

• Bilayer two-orbital model of La${}_3$Ni${}_2$O${}_7$ under pressure
• Possible $S_{\pm }$-wave superconductivity in La${}_3$Ni${}_2$O${}_7$
• Electronic correlations and superconducting instability in La${}_3$Ni${}_2$O${}_7$ under high pressure
• Correlated electronic structure, orbital-selective behavior, and magnetic correlations in double-layer La${}_3$Ni${}_2$O${}_7$ under pressure
• Structural transitions, octahedral rotations, and electronic properties of $A_3$Ni${}_2$O${}_7$ rare-earth nickelates under high pressure
• Superconductivity from repulsive interactions on the kagome lattice
• Optimizing superconductivity: from cuprates via nickelates to palladates
• Electronic Correlation and Pseudogap-like Behavior of High-Temperature Superconductor La3Ni2O7
• Electronic structure and magnetic correlations in trilayer nickelate superconductor La${}_4$Ni${}_3$O${}_{10}$ under pressure
• Two-gap superconductivity and decisive role of rare-earth $d$ electrons in infinite-layer nickelates
• An electronic origin of charge order in infinite-layer nickelates
• Screening in a two-band model for superconducting infinite-layer nickelate
• Charge Density Wave Ordering in NdNiO${}_2$: Effects of Multiorbital Nonlocal Correlations
• Quantifying interaction mechanism in infinite layer nickelate superconductors
• Antiferromagnetic fluctuations and a dominant $d_{xy}$-wave pairing symmetry in nickelate-based superconductors
• Closing in on possible scenarios for infinite-layer nickelates: comparison of dynamical mean-field theory with angular-resolved photoemission spectroscopy
• Intertwined charge and spin instability of La${}_3$Ni${}_2$O${}_7$
• Low-energy plasmon excitations in infinite-layer nickelates
• Interplay between electron correlations, magnetic state, and structural confinement in LaNiO3 ultrathin films
• Enhanced superconductivity in the compressively strained bilayer nickelate thin films by pressure
• Rashba spin-orbit coupling in infinite-layer nickelate films on SrTiO3(001) and KTaO3(001)
• Unconventional pairing in Ising superconductors: Application to monolayer NbSe${}_2$
• $\text{Ab initio}$ Materials Design of Superconductivity in $d^9$ Nickelates
• Electronic correlations and spin-charge-density stripes in double-layer La${}_3$Ni${}_2$O${}_7$
• Lattice dynamics of the infinite-layer nickelate LaNiO${}_2$
• Extended $s$-wave pairing from an emergent Feshbach resonance in bilayer nickelate superconductors
• Intrinsic coherence length anisotropy in nickelate, and some pnictide, and chalcogenide superconductors
• Gor'kov-Hedin-Baym Equations for Quantum Many-Body Systems with Spin-Dependent Interactions
• Orbital-selective spin-triplet superconductivity in infinite-layer LaNiO${}_2$
• Unconventional superconductivity in monolayer transition metal dichalcogenides
• Quasiparticle approach to the transport in infinite-layer nickelates
• Emergence and tunability of Fermi-pocket and electronic instabilities in layered Nickelates