Disorder-induced suppression of superconductivity in infinite-layer nickelates

Abstract

The pairing symmetry of superconducting infinite-layer nickelates is a fundamental yet experimentally challenging question. We employ high-energy electron irradiation to induce disorder in superconducting Nd${}_{0.825}$Sr${}_{0.175}$NiO${}_2$ thin films and examine the impact of pair-breaking defects on superconductivity and elucidate the nature of the superconducting gap. Our measurements reveal a complete suppression of superconductivity with increasing disorder, suggesting an unconventional, sign-changing order parameter.

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References in corpus (32)

• Powerlaw optical conductivity with a constant phase angle in high Tc superconductors
• Superconducting Dome in Nd${}_{1-x}$Sr${}_x$NiO${}_2$ Infinite Layer Films
• Electronic structure of the parent compound of superconducting infinite-layer nickelates
• Phase diagram and superconducting dome of infinite-layer $\mathrm{N}{\mathrm{d}}_{1-\mathrm{x}}\mathrm{S}{\mathrm{r}}_{\mathrm{x}}\mathrm{Ni}{\mathrm{O}}_2$ thin films
• Infinite Layer LaNiO(2): Ni(1+)is not Cu(2+)
• A superconducting praseodymium nickelate with infinite layer structure
• Nickelate superconductivity without rare-earth magnetism: (La,Sr)NiO${}_2$
• Superconductivity in infinite-layer nickelate La${}_{1-x}$Ca${}_x$NiO${}_2$ thin films
• Linear in Temperature Resistivity and Associated Mysteries
• Correlation between linear resistivity and $T_c$ in the Bechgaard salts and the pnictide superconductor Ba(Fe${}_{1-x}$Co${}_x$)${}_2$As${}_2$
• Doping evolution of the Mott-Hubbard landscape in infinite-layer nickelates
• Two superconducting components with different symmetries in Nd1-xSrxNiO2 films
• Predictions for Impurity-Induced Tc Suppression in the High-Temperature Superconductors
• Planckian Dissipation in Metals
• Aspects of the Synthesis of Thin Film Superconducting Infinite-Layer Nickelates
• Character of the "normal state" of the nickelate superconductors
• Critical temperature and superfluid density suppression in disordered high-$T_c$ cuprate superconductors
• Respective influences of pair breaking and phase fluctuations in disordered high Tc superconductors
• Disorder-induced topological change of the superconducting gap structure in iron pnictides
• Isotropic Pauli-Limited Superconductivity in the Infinite Layer Nickelate Nd${}_{0.775}$Sr${}_{0.225}$NiO${}_2$
• The effect of irradiation-induced disorder on the conductivity and critical temperature of the organic superconductor $\kappa$-(BEDT-TTF)${}_2$Cu(SCN)${}_2$
• Bulk evidence of anisotropic $s$-wave pairing with no sign change in the kagome superconductor CsV${}_3$Sb${}_5$
• Effect of electron irradiation on superconductivity in single crystals of Ba(Fe${}_{1-x}$Ru${}_x$)${}_2$As${}_2$ ($x=$0.24)
• Disorder and transport in cuprates: weak localization and magnetic contributions
• Cuprate-like Electronic Structures in Infinite-Layer Nickelates with Substantial Hole Dopings
• Low-energy electrodynamics of infinite-layer nickelates: evidence for d-wave superconductivity in the dirty limit
• Electronic Structure of Superconducting Infinite-Layer Lanthanum Nickelates
• S-wave Superconductivity in Optimally Doped SrTi${}_{1-x}$Nb${}_x$O${}_3$ Unveiled by Electron Irradiation
• Robustness of unconventional $s$-wave superconducting states against disorder
• Electronic band structure of a superconducting nickelate probed by the Seebeck coefficient in the disordered limit
• Electron irradiation reveals robust fully gapped superconductivity in LaNiGa${}_2$
• Irradiation-induced suppression of the critical temperature in high-Tc superconductors: Pair breaking versus phase fluctuations

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• Recent progress in nickelate superconductors
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