Spin susceptibility of charge ordered YBa2Cu3Oy across the upper critical field

Abstract

The value of the upper critical field Hc2, a fundamental characteristic of the superconducting state, has been subject to strong controversy in high-Tc copper-oxides. Since the issue has been tackled almost exclusively by macroscopic techniques so far, there is a clear need for local-probe measurements. Here, we use 17O NMR to measure the spin susceptibility ${\chi }_{spin}$ of the CuO2 planes at low temperature in charge ordered YBa2Cu3Oy. We find that ${\chi }_{spin}$ increases (most likely linearly) with magnetic field H and saturates above field values ranging from 20 to 40 T. This result is consistent with Hc2 values claimed by G. Grissonnanche et al. [Nat. Commun. 5, 3280 (2014)] and with the interpretation that the charge-density-wave (CDW) reduces Hc2 in underdoped YBa2Cu3Oy. Furthermore, the absence of marked deviation in ${\chi }_{spin}(H)$ at the onset of long-range CDW order indicates that this Hc2 reduction and the Fermi-surface reconstruction are primarily rooted in the short-range CDW order already present in zero field, not in the field-induced long-range CDWorder. Above Hc2, the relatively low values of ${\chi }_{spin}$ at T=2 K show that the pseudogap is a ground-state property, independent of the superconducting gap.

To appear

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Cited by in corpus (32)

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• Fragile superconductivity in the presence of weakly disordered charge density waves
• Vortex phase diagram and the normal state of cuprates with charge and spin orders
• NMR study of charge density waves under hydrostatic pressure in YBa2Cu3Oy
• Spatially Inhomogeneous Competition between Superconductivity and the Charge Density Wave in YBa${}_2$Cu${}_3$O${}_{6.67}$
• Extent of Fermi-surface reconstruction in the high-temperature superconductor HgBa${}_2$CuO${}_{4+\delta }$
• Unconventional quantum vortex matter state hosts quantum oscillations in the underdoped high-temperature cuprate superconductors
• Odd-frequency pair density wave correlations in underdoped cuprates
• Competition between spin ordering and superconductivity near the pseudogap boundary in La2-xSrxCuO4: insights from NMR
• The phase diagram of the underdoped cuprates at high magnetic field
• Charge-Density Waves vs. Superconductivity: Some Results and Future Perspectives
• Signatures of two gaps in the spin susceptibility of a cuprate superconductor
• Hard antinodal gap revealed by quantum oscillations in the pseudogap regime of underdoped high-$T_{\mathrm{c}}$ superconductors
• Structure of the Charge-Density Wave in Cuprate Superconductors: Lessons from NMR
• Quasiparticle Density of States, Localization, and Distributed Disorder in the Cuprate Superconductors
• Correlation between charge density waves and antiferromagnetism in Nd${}_{1-x}$Gd${}_x$NiC${}_2$ solid solution
• Intertwined Orders and Electronic Structure in Superconducting Vortex Halos
• Robust Charge-Density Wave Correlations in Optimally-Doped YBa2Cu3Oy
• Skyrmion-like textures in superconductors with competing order
• Infrared spectroscopy study of the in-plane response of YBa2Cu3O6.6 in magnetic fields up to 30 Tesla
• Spin-stripe order tied to the pseudogap phase in La1.8-xEu0.2SrxCuO4
• Doping dependence of the upper critical field in untwinned YBa${}_2$Cu${}_3$O${}_{7-\delta }$ thin films
• Boosting superconductivity in ultrathin YBa${}_2$Cu${}_3$O${}_{7-\delta }$ films via nanofaceted substrates
• Thermodynamic phase diagram of the competition between superconductivity and charge order in cuprates
• High field charge order across the phase diagram of $YB{a}_{2}C{u}_3{O}_y$
• Charge modulation in the background of depleted superconductivity inside vortices
• Exploring Strongly Interacting Gapless States: Cuprates, Pair Density Waves, and Fluctuating Superconductivity