Absence of $3a_0$ Charge Density Wave Order in the Infinite Layer Nickelates

Abstract

A hallmark of many unconventional superconductors is the presence of many-body interactions which give rise to broken symmetry states intertwined with superconductivity. Recent resonant soft x-ray scattering experiments report commensurate $3a_0$ charge density wave order in the infinite layer nickelates, which has important implications regarding the universal interplay between charge order and superconductivity in both the cuprates and nickelates. Here, we present x-ray scattering and spectroscopy measurements on a series of NdNiO${}_{2+x}$ samples which reveal that the signatures of charge density wave order are absent in fully reduced, single-phase NdNiO${}_2$. The $3a_0$ superlattice peak instead originates from a partially reduced impurity phase where excess apical oxygens form ordered rows with 3 unit cell periodicity. The absence of any observable charge density wave order in NdNiO${}_2$ highlights a crucial difference between the phase diagrams of the cuprate and nickelate superconductors.

Main Text: 8 pages, 4 figures. Supplemental: 12 pages, 12 figures

References in corpus (13)

• Resonant X-ray Scattering Study of Charge Density Wave Correlations in YBa${}_2$Cu${}_3$O${}_{6+x}$
• Ground state oxygen holes and the metal-insulator transition in the negative charge transfer rare-earth nickelates
• Nickelate superconductivity without rare-earth magnetism: (La,Sr)NiO${}_2$
• Distinct Charge Orders in the Planes and Chains of Ortho-III-Ordered YBa${}_2$Cu${}_3$O${}_{6+\delta }$ Superconductors Identified by Resonant Elastic X-ray Scattering
• Character of the "normal state" of the nickelate superconductors
• Charge density waves in infinite-layer NdNiO${}_2$ nickelates
• Synthesis and characterization of bulk Nd1-xSrxNiO2 and Nd1-xSrxNiO3
• Charge and spin order dichotomy in NdNiO${}_2$ driven by SrTiO${}_3$ capping layer
• Intrinsic magnetism in superconducting infinite-layer nickelates
• Resonant elastic soft x-ray scattering in oxygen-ordered YBa_2Cu_3O_{6+delta}
• Impact of Cation Stoichiometry on the Crystalline Structure and Superconductivity in Nickelates
• Charge distribution across capped and uncapped infinite-layer neodymium nickelate thin films
• Topotactically induced oxygen vacancy order in nickelate single crystals

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• $\text{In situ}$ preparation of superconducting infinite-layer nickelate thin films with atomically flat surface
• From non-metal to strange metal at the stripe-percolation transition in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Investigation of spin excitations and charge order in bulk crystals of the infinite-layer nickelate LaNiO${}_2$
• Two Distinct Charge Orders in Infinite-layer PrNiO2+δ revealed by Resonant X-ray Diffraction
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• Capping effects on spin and charge excitations in parent and superconducting Nd1-xSrxNiO2
• Pressure effects on the electronic structure and magnetic properties of infinite-layer nickelates
• Emergence and tunability of Fermi-pocket and electronic instabilities in layered Nickelates
• Systematic evolution of superconducting pairing strength and Seebeck coefficients in correlated infinite-layer La${}_{1-x}$Sr${}_x$NiO${}_2$
• Superconducting phase diagram of multi-layer square-planar nickelates
• Discovery of Giant Unit-Cell Super-Structure in the Infinite-Layer Nickelate PrNiO${}_2$
• Achieving superconductivity in infinite-layer nickelate thin films by aluminum sputtering deposition