Survival of the d-wave superconducting state near the edge of antiferromagnetism in the cuprate phase diagram

Abstract

In the cuprate superconductor $YB{a}_{2}C{u}_3{O}_{6+x}$, hole doping in the $Cu{O}_2$ layers is controlled by both oxygen content and the degree of oxygen-ordering. At the composition $\mathrm{YB}{\mathrm{a}}_2\mathrm{C}{\mathrm{u}}_3{\mathrm{O}}_{6.35}$, the ordering can occur at room temperature, thereby tuning the hole doping so that the superconducting critical temperature gradually rises from zero to 20 K. Here we exploit this to study the c-axis penetration depth as a function of temperature and doping. The temperature dependence shows the d-wave superconductor surviving to very low doping, with no sign of another ordered phase interfering with the nodal quasiparticles. The only apparent doping dependence is a smooth decline of superfluid density as Tc decreases.

arXiv comment4 pages, 3 figures

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• Correlation between superfluid density and Tc of underdoped YBa2Cu3O6+x near the superconductor-insulator transition
• Kosterlitz-Thouless behavior in layered superconductors: the role of the vortex-core energy
• Effective 2D thickness for the Berezinskii-Kosterlitz-Thouless-like transition in a highly underdoped La${}_{2-x}$Sr${}_x$CuO${}_4$
• Electric field effect modulation of transition temperature, mobile carrier density and in-plane penetration depth in NdBa2Cu3O(7-delta) thin films
• Effective theory of high-temperature superconductors
• Nodeless d-wave superconducting pairing due to residual antiferromagnetism in underdoped Pr${}_{2-x}$Ce${}_x$CuO${}_{4-\delta }$
• Two-dimensional vortex behavior in highly underdoped YBa_2Cu_3O_{6+x} observed by scanning Hall probe microscopy
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• Onset of a boson mode at superconducting critical point of underdoped YBa2Cu3Oy
• Non-linear Terahertz Driving of Plasma Waves in Layered Cuprates
• Doping dependence of the vortex-core energy in bilayer films of cuprates
• Generalized plasma waves in layered superconductors
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• Temperature dependence of geometrical and velocity matching resonances in Bi2Sr2CaCu2O8+x intrinsic Josephson junctions
• Generalized Josephson plasmons in bilayer superconductors
• Origin of the T${}_c$ enhancement in heterostructure cuprate superconductors
• Magnetic field resonantly enhanced free spins in underdoped YBa${}_2$Cu${}_3$O${}_{6+x}$
• Scaling of the superfluid density in severely underdoped YBa2Cu3O6+y
• Competing orders and inter-layer tunnelling in cuprate superconductors: A finite temperature Landau theory
• Electrodynamics of correlated electron systems
• Stability of nodal quasiparticles in underdoped YBa2Cu3O6+y probed by penetration depth and microwave spectroscopy
• Optical absorption in tilted geometries as an indirect measurement of longitudinal plasma waves in layered cuprates
• On the occurrence of Berezinskii-Kosterlitz-Thouless behavior in highly anisotropic cuprate superconductors
• High Temperature Mixed State $c-$Axis Dissipation in Low Carrier Density $Y_{0.54}P{r}_{0.46}B{a}_{2}C{u}_3{O}_{7-\delta }$
• Effective magnetic penetration depth in superconducting cylinders and spheres with highly anisotropic electrodynamics
• Electromagnetic response of cuprate superconductors with coexisting electronic nematicity
• Quantum phase transition in overdoped La${}_{2-x}$Sr${}_x$CuO${}_4$ evinced by the superfluid density
• Exact summation of vertex corrections to the penetration depth in d-wave superconductors