Character of the "normal state" of the nickelate superconductors

Abstract

The occurrence of superconductivity in proximity to various strongly correlated phases of matter has drawn extensive focus on their normal state properties, to develop an understanding of the state from which superconductivity emerges. The recent finding of superconductivity in layered nickelates raises similar interests. However, transport measurements of doped infinite-layer nickelate thin films have been hampered by materials limitations of these metastable compounds - in particular, a relatively high density of extended defects. Here, by moving to a substrate (LaAlO${}_3$)${}_{0.3}$(Sr${}_2$TaAlO${}_6$)${}_{0.7}$ which better stabilizes the growth and reduction conditions, we can synthesize the doping series of Nd${}_{1-x}$Sr${}_x$NiO${}_2$ essentially free from extended defects. This enables the first examination of the 'intrinsic' temperature and doping dependent evolution of the transport properties. The normal state resistivity exhibits a low-temperature upturn in the underdoped regime, linear behavior near optimal doping, and quadratic temperature dependence for overdoping. This is strikingly similar to the copper oxides, despite key distinctions - namely the absence of an insulating parent compound, multiband electronic structure, and a Mott-Hubbard orbital alignment rather than the charge-transfer insulator of the copper oxides. These results suggest an underlying universality in the emergent electronic properties of both superconducting families.

References in corpus (13)

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Cited by in corpus (60)

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• Absence of $3a_0$ Charge Density Wave Order in the Infinite Layer Nickelates
• Low-energy electrodynamics of infinite-layer nickelates: evidence for d-wave superconductivity in the dirty limit
• Signature of Superconductivity in Pressurized Trilayer-nickelate Pr${}_4$Ni${}_3$O${}_{10-\delta }$
• Recent progress in nickelate superconductors
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• Unconventional superconductivity without doping: infinite-layer nickelates under pressure
• On the origin of topotactic reduction effect for superconductivity in infinite-layer nickelates
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• Synthesis of thin film infinite-layer nickelates by atomic hydrogen reduction: clarifying the role of the capping layer
• Superconductivity in the parent infinite-layer nickelate NdNiO${}_2$
• Quantifying interaction mechanism in infinite layer nickelate superconductors
• Investigation of spin excitations and charge order in bulk crystals of the infinite-layer nickelate LaNiO${}_2$
• A-15 type superconducting hydride $L{a}_4{H}_{23}$: Nanograined structure with low strain, strong electron-phonon interaction, and moderate level of nonadiabaticity
• Spin-density wave and superconductivity in La${}_4$Ni${}_3$O${}_{10}$ under ambient pressure
• Electronic band structure of a superconducting nickelate probed by the Seebeck coefficient in the disordered limit
• 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
• Unraveling p-type and n-type interfaces in Superconducting Infinite-Layer Nickelate thin films
• Emergent electronic landscapes in a novel valence-ordered nickelate with tri-component nickel coordination
• Superconducting Dome in ${\mathrm{La}}_{3-x}{\mathrm{Sr}}_x{\mathrm{Ni}}_2{\mathrm{O}}_{7-\delta }$ Thin Films
• Thin films as practical quantum materials: a status quo and beyond
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• Possible Liquid-Nitrogen-Temperature Superconductivity Driven by Perpendicular Electric Field in the Single-Bilayer Film of La${}_3$Ni${}_2$O${}_7$ at Ambient Pressure
• Origin of the Diagonal Double-Stripe Spin-Density-Wave and Potential Superconductivity in Bulk La${}_3$Ni${}_2$O${}_7$ at Ambient Pressure
• Observation of Electride-like $s$ States Coexisting with Correlated $d$ Electrons in NdNiO${}_2$
• Enhanced superconductivity in the compressively strained bilayer nickelate thin films by pressure
• Correlation between unconventional superconductivity and strange metallicity revealed by operando superfluid density measurements
• Magnetism-Enhanced Strong Electron-Phonon Coupling in Infinite-Layer Nickelate
• Unveiling the multiband metallic nature of the normal state in nickelate La3Ni2O7
• Nodeless superconducting gap and electron-boson coupling in (La,Pr,Sm)${}_3$Ni${}_2$O${}_7$ films
• Preparation and optimization of high-temperature superconducting Ruddlesden-Popper nickelate thin films
• Disorder-induced suppression of superconductivity in infinite-layer nickelates
• Three-dimensional bond-order instability in infinite-layer nickelates due to nonlocal quantum interference
• Topotactical Hydrogen Induced Single-Band $d$-wave Superconductivity in La${}_2$NiO${}_4$
• 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
• Superconducting phase diagram of finite-layer nickelates Nd${}_{n+1}$Ni${}_n$O${}_{2n+2}$
• Topotactic phase transformation in correlated vanadium dioxide through oxygen vacancy ordering
• Lattice dynamics of the infinite-layer nickelate LaNiO${}_2$
• Distinct orbital contributions to electronic and magnetic structures in La${}_4$Ni${}_3$O${}_{10}$
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• Robust $T$-Linear Resistivity due to SU(4) Valley + Spin Fluctuation Mechanism in Magic Angle Twisted Bilayer Graphene
• Systematic evolution of superconducting pairing strength and Seebeck coefficients in correlated infinite-layer La${}_{1-x}$Sr${}_x$NiO${}_2$
• Non-Fermi liquid behavior in La${}_3$Ni${}_2$O${}_7$ thin films under hydrostatic pressure
• Expanding the trilayer Ruddlesden-Popper nickelate family: Synthesis and characterization of Sm${}_4$Ni${}_3$O${}_{10-\delta }$ single crystals
• Superconducting phase diagram of multi-layer square-planar nickelates
• Impact of multiband effects on non-Fermi-liquid transport phenomena in bilayer nickelates
• Unconventional superconductivity emerging along with the strange-metal behavior in UAs2 under pressure
• Achieving superconductivity in infinite-layer nickelate thin films by aluminum sputtering deposition
• Surfaces and interfaces of infinite-layer nickelates studied by dynamical mean-field theory
• Effect of doping on the electronic structure, orbital-dependent renormalizations, and magnetic correlations in bilayer La${}_3$Ni${}_2$O${}_7$
• Observation of correlated plasmons in low-valence nickelates
• Hubbard-$U$-corrected electron-phonon interactions in strongly correlated materials via the finite-displacement method