Magnetic penetration depth and $T_c$ in superconducting nickelates

Abstract

We compute the nominal magnetic penetration depth of $R$NiO${}_2$ ($R=$ La, Nd) from first principles calculations and discuss the results in relation to the superconducting $T_c$. We find a marked discrepancy with the well established phenomenology that correlates these two quantities in cuprates (Uemura plot). We also consider the 2D ultrathin limit and estimate the maximum attainable $T_c$ to be $\sim 180$ K according to the Nelson-Kosterliz universal relation between the superfluid density and the transition temperature.

3 pages, 1 table, 2 figures

References in corpus (4)

• Magnetic Penetration Depth in Unconventional Superconductors
• Self-doped Mott insulator for parent compounds of nickelate superconductors
• Two-band model for magnetism and superconductivity in nickelates
• Hole superconductivity in infinite-layer nickelates

Cited by in corpus (9)

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• Trilayer multi-orbital models of $\mathrm{L}{\mathrm{a}}_4\mathrm{N}{\mathrm{i}}_3{\mathrm{O}}_{10}$
• Polarity induced electronic and atomic reconstruction at NdNiO2/SrTiO3 interfaces
• Dynamical structural instability and its implication on the physical properties of infinite-layer nickelates
• Electronic Theory for Scanning Tunneling Microscopy Spectra in Infinite-Layer Nickelate Superconductors
• Stabilization of singlet hole-doped state in infinite-layer nickelate superconductors
• Charge ordering as the driving mechanism for superconductivity in rare-earth nickel oxides
• Possible structural quantum criticality tuned by rare-earth ion substitution in infinite-layer nickelates
• Pressure and doping effects on the electronic structure and magnetism of the single-layer nickelate La${}_2$NiO${}_4$