Nickelate superconductivity without rare-earth magnetism: (La,Sr)NiO${}_2$

Abstract

The observation of superconductivity in infinite layer nickelate (Nd,Sr)NiO${}_2$ thin films has led to rapid theoretical and experimental investigations of these copper-oxide-analogue systems [1-15]. Superconductivity has also been found in (Pr,Sr)NiO${}_2$ [16,17], but not previously in (La,Sr)NiO${}_2$ [2], raising a fundamental question whether superconductivity is associated with the presence of rare-earth moments [18,19]. Here we show that with significant materials optimization, substantial portions of the La${}_{1-x}$Sr${}_x$NiO${}_2$ phase diagram can enter the regime of coherent low-temperature transport ($x$ = 0.14 - 0.20), with subsequent superconducting transitions and a maximum onset of ~ 9 K at $x$ = 0.20. Additionally, we observe the unexpected indication of a superconducting ground state in undoped LaNiO${}_2$, which likely reflects the self-doped nature of the electronic structure. Combining the results of (La/Pr/Nd)${}_{1-x}$Sr${}_x$NiO${}_2$ reveals a generalized superconducting dome, characterized by systematic shifts in the unit cell volume and in the relative electron-hole populations across the lanthanides.

23 pages, 4 figures

References in corpus (7)

• A superconducting praseodymium nickelate with infinite layer structure
• Self-doped Mott insulator for parent compounds of nickelate superconductors
• Late transition-metal oxides with infinite-layer structure: Nickelates versus cuprates
• Nickelate superconductors $--$ Multiorbital nature and spin freezing
• Role of $4f$ states in infinite-layer NdNiO${}_2$
• Synthesis and characterization of bulk Nd1-xSrxNiO2 and Nd1-xSrxNiO3
• Electronic structure of rare-earth infinite-layer ReNiO2 (Re=La, Nd)

Cited by in corpus (145)

• Superconductivity in a quintuple-layer square-planar nickelate
• Superconductivity in infinite-layer nickelate La${}_{1-x}$Ca${}_x$NiO${}_2$ thin films
• The s${}^{\pm }$-Wave Pairing and the Destructive Role of Apical-Oxygen Deficiencies in La${}_3$Ni${}_2$O${}_7$ Under Pressure
• Electronic correlations and superconducting instability in La${}_3$Ni${}_2$O${}_7$ under high pressure
• Effective bi-layer model Hamiltonian and density-matrix renormalization group study for the high-Tc superconductivity in La${}_3$Ni${}_2$O${}_7$ under high pressure
• Signature of superconductivity in pressurized La${}_4$Ni${}_3$O${}_{10}$
• Character of the "normal state" of the nickelate superconductors
• Superconductivity in infinite-layer nickelates
• Pressure-induced monotonic enhancement of Tc to over 30 K in the superconducting Pr0.82Sr0.18NiO2 thin films
• Charge density waves in infinite-layer NdNiO${}_2$ nickelates
• Electronic correlations and partial gap in the bilayer nickelate La${}_3$Ni${}_2$O${}_7$
• Correlated electronic structure, orbital-selective behavior, and magnetic correlations in double-layer La${}_3$Ni${}_2$O${}_7$ under pressure
• Charge and spin order dichotomy in NdNiO${}_2$ driven by SrTiO${}_3$ capping layer
• Effects of Pressure and Doping on Ruddlesden-Popper phases Lan+1NinO3n+1
• Intrinsic magnetism in superconducting infinite-layer nickelates
• Structural transitions, octahedral rotations, and electronic properties of $A_3$Ni${}_2$O${}_7$ rare-earth nickelates under high pressure
• Long-Range Structural Order in a Hidden Phase of Ruddlesden-Popper Bilayer Nickelate La${}_3$Ni${}_2$O${}_7$
• Topotactic transformation of single-crystals: from perovskite to infinite-layer nickelates
• Superconductivity in nickel based 112 systems
• Superconductivity in trilayer nickelate La4Ni3O10 under pressure
• Reconstructing the polar interface of infinite-layer nickelate thin films
• Phase diagram of nickelate superconductors calculated by dynamical vertex approximation
• Sensitive dependence of pairing symmetry on Ni-$e_g$ crystal field splitting in the nickelate superconductor La${}_3$Ni${}_2$O${}_7$
• Magnetic correlations in infinite-layer nickelates: an experimental and theoretical multi-method study
• Absence of $3a_0$ Charge Density Wave Order in the Infinite Layer Nickelates
• Dynamical Mean Field Studies of Infinite Layer Nickelates: Physics Results and Methodological Implications
• Evidence for quasi-two-dimensional superconductivity in infinite-layer nickelates
• Electronic structure of superconducting nickelates probed by resonant photoemission spectroscopy
• Impact of Cation Stoichiometry on the Crystalline Structure and Superconductivity in Nickelates
• Cuprate-like Electronic Structures in Infinite-Layer Nickelates with Substantial Hole Dopings
• Optimizing superconductivity: from cuprates via nickelates to palladates
• Electronic Correlation and Pseudogap-like Behavior of High-Temperature Superconductor La3Ni2O7
• Topotactic Transition: A Promising Opportunity for Creating New Oxides
• Bulk superconductivity up to 96 K in pressurized nickelate single crystals
• Electronic structure and magnetic tendencies of trilayer La${}_4$Ni${}_3$O${}_{10}$ under pressure: structural transition, molecular orbitals, and layer differentiation
• Density-wave-like gap evolution in La${}_3$Ni${}_2$O${}_7$ under high pressure revealed by ultrafast optical spectroscopy
• Electronic Structure of Superconducting Infinite-Layer Lanthanum Nickelates
• Optical properties and electronic correlations in La${}_3$Ni${}_2$O${}_7$ bilayer nickelates under high pressure
• Correlations turn electronic structure of finite-layer nickelates upside down
• Experimental Progress on the Emergent Infinite-Layer Ni-Based Superconductors
• Infinite-layer nickelate superconductors: A current experimental perspective of the crystal and electronic structures
• Low Valence Nickelates: Launching the Nickel Age of Superconductivity
• Soft X-ray Spectroscopy of Low-Valence Nickelates
• Electronic structure and magnetic correlations in trilayer nickelate superconductor La${}_4$Ni${}_3$O${}_{10}$ under pressure
• The $s^{\pm }$-Wave Superconductivity in the Pressurized La${}_4$Ni${}_3$O${}_{10}$
• Recent progress in nickelate superconductors
• Self-doping and the Mott-Kondo scenario for infinite-layer nickelate superconductors
• Limits to the strain engineering of layered square-planar nickelate thin films
• Stability of Superconducting Nd0.8Sr0.2NiO2 Thin Films
• Electronic properties of nickelate superconductor R3Ni2O7 with oxygen vacancies
• Synthesis of infinite-layer nickelates and influence of the capping-layer on magnetotransport
• Synthesis and physical properties of LaNiO${}_2$ crystals
• Superconductivity in PrNiO2 infinite-layer nickelates
• Two-gap superconductivity and decisive role of rare-earth $d$ electrons in infinite-layer nickelates
• Assessing the formation of spin and charge stripes in La${}_3$Ni${}_2$O${}_7$ from first-principles
• High-pressure crystal growth and investigation of the metal-to-metal transition of Ruddlesden-Popper trilayer nickelates La${}_4$Ni${}_3$O${}_{10}$
• Modulation of the Octahedral Structure and Potential Superconductivity of La${}_3$Ni${}_2$O${}_7$ through Strain Engineering
• Geometric effects in the infinite-layer nickelates
• An electronic origin of charge order in infinite-layer nickelates
• Preempted phonon-mediated superconductivity in the infinite-layer nickelates
• Electronic structure of higher-order Ruddlesden-Popper nickelates
• Role of Oxygen States in the Low Valence Nickelate La${}_4$Ni${}_3$O${}_8$
• Electronic structure of Ruddlesden-Popper nickelates: strain to mimic the effects pressure
• Investigation of hydrogen incorporations in bulk infinite-layer nickelates
• Unconventional superconductivity without doping: infinite-layer nickelates under pressure
• Microscopic Theory of Superconducting Phase Diagram in Infinite-Layer Nickelates
• On the origin of topotactic reduction effect for superconductivity in infinite-layer nickelates
• Superconductivity in freestanding infinite-layer nickelate membranes
• Epitaxial growth of Ruddlesden-Popper neodymium nickelates Nd${}_{n+1}$Ni${}_n$O${}_{3n+1}$ ($n$ = 1-5)
• Phase diagram of pressure-induced high temperature superconductor La${}_3$Ni${}_2$O${}_{7+\delta }$
• Synthesis of thin film infinite-layer nickelates by atomic hydrogen reduction: clarifying the role of the capping layer
• Correlated electronic structure of a quintuple-layer nickelate
• Dynamical structural instability and its implication on the physical properties of infinite-layer nickelates
• Topotactic-hydrogen forms chains in $AB$O${}_2$ nickelate superconductors
• Emergent flat-band physics in $d^{9-\delta }$ multilayer nickelates
• Spin-density, charge- and bond-disproportionation wave instability in hole-doped infinite-layer $R$NiO${}_2$
• Many-body electronic structure of $d^{9-\delta }$ layered nickelates
• Phase formation in hole- and electron-doped rare-earth nickelate single crystals
• Oxygen vacancy formation and electronic reconstruction in strained LaNiO${}_3$ and LaNiO${}_3$/LaAlO${}_3$ superlattices
• Charge Density Wave Ordering in NdNiO${}_2$: Effects of Multiorbital Nonlocal Correlations
• Superconductivity in the parent infinite-layer nickelate NdNiO${}_2$
• Signatures of topotactic hydrogen in nickelate superconductors
• Electronic Theory for Scanning Tunneling Microscopy Spectra in Infinite-Layer Nickelate Superconductors
• Synthesis and Properties of La${}_{1-x}$Sr${}_x$NiO${}_3$ and La${}_{1-x}$Sr${}_x$NiO${}_2$
• $\text{In situ}$ preparation of superconducting infinite-layer nickelate thin films with atomically flat surface
• Growth and characterization of the La${}_3$Ni${}_2$O${}_{7-\delta }$ thin films: dominant contribution of the $d_{x^2-y^2}$ orbital at ambient pressure
• Large upper critical fields and dimensionality crossover of superconductivity in infinite-layer nickelate La${}_{0.8}$Sr${}_{0.2}$NiO${}_2$
• Antiferromagnetic fluctuations and a dominant $d_{xy}$-wave pairing symmetry in nickelate-based superconductors
• Distinct electridelike nature of infinite-layer nickelates and the resulting theoretical challenges to calculate their electronic structure
• Structural instabilities of infinite-layer nickelates from first-principles simulations
• Assessing the correlated electronic structure of lanthanum nickelates
• Topotactically induced oxygen vacancy order in nickelate single crystals
• Signature of superconductivity in pressurized La4Ni3O10-x single crystals grown at ambient pressure
• Electronic correlations, layer distinction, and electron doping in the alternating single-layer trilayer La${}_3$Ni${}_2$O${}_7$ polymorph
• Electronic character of charge order in square planar low valence nickelates
• Two-orbital model for possible superconductivity pairing mechanism in nickelates
• Nature of the magnetic coupling in infinite-layer nickelates versus cuprates
• Charge ordering as the driving mechanism for superconductivity in rare-earth nickel oxides
• Comparative study of charge order in undoped infinite-layer nickelate superconductors
• Unusual Hole-doping-dependent Electronic Instability and Electron-Phonon Coupling in Infinite-layer Nickelates
• Thin-film aspects of superconducting nickelates
• Charge order and superconductivity in a minimal two-band model for infinite-layer nickelates
• Closing in on possible scenarios for infinite-layer nickelates: comparison of dynamical mean-field theory with angular-resolved photoemission spectroscopy
• Two Distinct Charge Orders in Infinite-layer PrNiO2+δ revealed by Resonant X-ray Diffraction
• First-principles study on Pr-doped Bilayer Nickelate La3Ni2O7
• $GW$+EDMFT investigation of Pr${}_{1-x}$Sr${}_x$NiO${}_2$ under pressure
• Observation of Coulomb blockade and Coulomb staircases in superconducting Pr0.8Sr0.2NiO2 films
• Possible structural quantum criticality tuned by rare-earth ion substitution in infinite-layer nickelates
• Electron-phonon mediated superconductivity in La${}_6$Ni${}_5$O${}_{12}$ nickel oxides
• Low-energy plasmon excitations in infinite-layer nickelates
• Observation of Electride-like $s$ States Coexisting with Correlated $d$ Electrons in NdNiO${}_2$
• Rashba spin-orbit coupling in infinite-layer nickelate films on SrTiO3(001) and KTaO3(001)
• Magnetism-Enhanced Strong Electron-Phonon Coupling in Infinite-Layer Nickelate
• Conductivity of infinite-layer NdNiO${}_2$ as a probe of spectator bands
• Disorder-induced suppression of superconductivity in infinite-layer nickelates
• Fermi surface reconstruction and enhanced spin fluctuations in strained La${}_3$Ni${}_2$O${}_7$ on LaAlO${}_3$(001) and SrTiO${}_3$(001)
• Influence of $f$ Electrons on the Electronic Band Structure of Rare-Earth Nickelates
• A Broken Translational Symmetry State in an Infinite-Layer Nickelate
• Possible routes to superconductivity in the surface layers of V-doped Mg${}_{1-\delta }$Ti${}_2$O${}_4$ through multiple charge transfers and suppression of Jahn-Teller activity
• Damage of bilayer structure in La3Ni2O7-d induced by high pO2 annealing
• Competing spin-glass and spin-fluctuation states in NdxPr4-xNi3O8
• $\text{Ab initio}$ Materials Design of Superconductivity in $d^9$ Nickelates
• Electronic reconstruction and interface engineering of emergent spin fluctuations in compressively strained La${}_3$Ni${}_2$O${}_7$ on SrLaAlO${}_4$(001)
• Topotactical Hydrogen Induced Single-Band $d$-wave Superconductivity in La${}_2$NiO${}_4$
• Absence of mixed valency for Pr in pristine and hole-doped PrNiO${}_2$
• Weakly anisotropic superconductivity of Pr4Ni3O10 single crystals
• Superconducting phase diagram of finite-layer nickelates Nd${}_{n+1}$Ni${}_n$O${}_{2n+2}$
• Electronic correlations and spin-charge-density stripes in double-layer La${}_3$Ni${}_2$O${}_7$
• Comparison of superconducting pairing in doped cuprates and nickelates within an extended Hubbard model
• Numerical study of bi-layer two-orbital model for La${}_3$Ni${}_2$O${}_7$ on a plaquette ladder
• Decoupling between $d_{x^2-y^2}$ and $d_{z^2}$ orbitals in hole doped La${}_3$Ni${}_2$O${}_7$
• Spin-glass state in nickelate superconductors
• Pressure effects on the electronic structure and magnetic properties of infinite-layer nickelates
• Oxygen sublattice disorder and valence state modulation in infinite-layer nickelate superlattices
• Theoretical study on the possibility of high $T_c$ s$\pm$-wave superconductivity in the heavily hole-doped infinite layer nickelates
• Emergence and tunability of Fermi-pocket and electronic instabilities in layered Nickelates
• A new ferromagnetic semiconductor system of Eu${}_{1-x}$Sr${}_x$AgP $(x=0.0-0.6)$ compounds: Crystallographic, magnetic, and magneto-resistive properties
• Orbital-selective spin-triplet superconductivity in infinite-layer LaNiO${}_2$
• Re-entrant unconventional superconductivity induced by rare-earth substitution in Nd1-xEuxNiO2 thin films
• Superconducting phase diagram of multi-layer square-planar nickelates
• Systematic evolution of superconducting pairing strength and Seebeck coefficients in correlated infinite-layer La${}_{1-x}$Sr${}_x$NiO${}_2$
• Hubbard-$U$-corrected electron-phonon interactions in strongly correlated materials via the finite-displacement method
• Effect of doping on the electronic structure, orbital-dependent renormalizations, and magnetic correlations in bilayer La${}_3$Ni${}_2$O${}_7$
• Achieving superconductivity in infinite-layer nickelate thin films by aluminum sputtering deposition
• Hot-lines topology and the fate of the spin resonance mode in three-dimensional unconventional superconductors