Rapid Suppression of the Charge Density Wave in YBa${}_2$Cu${}_3$O${}_{6.6}$ under Hydrostatic Pressure

Abstract

We report on the effects of hydrostatic pressure (HP) on the charge density wave observed in underdoped cuprates. We studied YBa${}_2$Cu${}_3$O${}_{6.6}$ ($T_c$=61 K) using high-resolution inelastic x-ray scattering (IXS), and reveal an extreme sensitivity of the phonon anomalies related to the charge density wave (CDW) order to HP. The amplitudes of the normal state broadening and superconductivity induced phonon softening at Q${}_{CDW}$ rapidly decrease as HP is applied, resulting in the complete suppression of signatures of the CDW below $\sim$1 GPa. Additional IXS measurements on YBa${}_2$Cu${}_3$O${}_{6.75}$ demonstrate that this very rapid effect cannot be explained by pressure-induced modification of the doping level and highlight the different role of external pressure and doping in tuning the phase diagram of the cuprates. Our results provide new insights into the mechanisms underlying the CDW formation and its interplay with superconductivity.

arXiv comment6 pages, 3 figures

References in corpus (25)

• Conventional superconductivity at 203 K at high pressures
• Long-range incommensurate charge fluctuations in (Y,Nd)Ba2Cu3O(6+x)
• Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3Oy
• Ubiquitous Interplay between Charge Ordering and High-Temperature Superconductivity in Cuprates
• Charge order driven by Fermi-arc instability in Bi2201
• Nonlinear lattice dynamics as a basis for enhanced superconductivity in YBa2Cu3O6.5
• Optically enhanced coherent transport in YBa2Cu3O6.5 by ultrafast redistribution of interlayer coupling
• Evaluation of CuO2 plane hole doping in YBa2Cu3O6+x single crystals
• Resonant X-ray Scattering Study of Charge Density Wave Correlations in YBa${}_2$Cu${}_3$O${}_{6+x}$
• Connection between charge-density-wave order and charge transport in the cuprate superconductors
• Optically induced coherent transport far above Tc in underdoped YBa2Cu3O6+x
• Giant phonon anomalies and central peak due to charge density wave formation in YBa${}_2$Cu${}_3$O${}_{6.6}$
• Charge ordering in the electron-doped superconductor Nd2-xCexCuO4
• Charge density wave fluctuations in La2-xSrxCuO4 and their competition with superconductivity
• Competing charge, spin, and superconducting orders in underdoped YBa2Cu3Oy
• Momentum-dependent charge correlations in YBa${}_2$Cu${}_3$O${}_{6+\delta }$ superconductors probed by resonant x-ray scattering: Evidence for three competing phases
• Quantum Oscillations in Hole-Doped Cuprates
• An inelastic x-ray study of phonon broadening and charge density wave formation in ortho-II ordered YBa2Cu3O6.54
• Pressure Studies on a High-$T_c$ Superconductor Pseudogap and Critical Temperatures
• Femtosecond x rays link melting of charge-density wave correlations and light-enhanced coherent transport in YBa2Cu3O6.6
• Hydrostatic-pressure effects on the pseudogap in slightly doped YBa2Cu3O7-δ single crystals
• High pressure effects in fluorinated HgBa2Ca2Cu3O(8+d)
• Tuning the static spin-stripe phase and superconductivity in La_(2-x)Ba_xCuO_4 (x = 1/8) by hydrostatic pressure
• Inverse correlation between quasiparticle mass and Tc in a cuprate high-Tc superconductor
• Accessing the Full Superconducting Dome in Pristine YBa2Cu3O6+x Under Pressure

Cited by in corpus (21)

• Electronic and magnetic excitations in La${}_3$Ni${}_2$O${}_7$
• Charge ordering in superconducting copper oxides
• Anomalies in the pseudogap phase of the cuprates: Competing ground states and the role of umklapp scattering
• Sensitivity of $T_{\mathrm{c}}$ to pressure and magnetic field in the cuprate superconductor YBa${}_2$Cu${}_3$O${}_y$: evidence of charge order suppression by pressure
• Fractionalized pair density wave in the pseudo-gap phase of cuprate superconductors
• Restored strange metal phase through suppression of charge density waves in underdoped YBa${}_2$Cu${}_3$O${}_{7-\delta }$
• Persistent low-energy phonon broadening near the charge order $q$-vector in bilayer cuprate Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$
• Rigid platform for applying large tunable strains to mechanically delicate samples
• NMR study of charge density waves under hydrostatic pressure in YBa2Cu3Oy
• Possible enhancement of the superconducting $T_c$ due to sharp Kohn-like soft phonon anomalies
• Pressure-Induced Re-entrant transition in NbS3 Phases: Combined Raman Scattering and X-ray Diffraction Study
• Using strain to uncover the interplay between two- and three-dimensional charge density waves in high-temperature superconducting YBa${}_2$Cu${}_3$O${}_{\mathrm{y}}$
• Modification of structural disorder by hydrostatic-pressure in superconducting YBa${}_2$Cu${}_3$O${}_{6.73}$ cuprate
• Inelastic X-ray scattering studies of phonon dispersions in superconductors at high pressures
• In-plane Isotropy of the Low Energy Phonon Anomalies in YBa${}_2$Cu${}_3$O${}_{6+x}$
• Effect of pressure on the pseudogap and charge-density-wave phases of the cuprate La${}_{1.6-x}$Nd${}_{0.4}$Sr${}_x$CuO${}_4$ probed by thermopower measurements
• Hybridization of lattice and charge order excitations in a superconducting cuprate
• Doping dependence of the upper critical field in untwinned YBa${}_2$Cu${}_3$O${}_{7-\delta }$ thin films
• Suppression of superconductivity by charge density wave order in YBa${}_2$Cu${}_3$O${}_{6.67}$
• Resonant x-ray scattering study of charge-density wave correlations in YBa${}_2$Cu${}_3$O${}_{6+x}$ under uniaxial stress
• Phase diagram of the two-dimensional Hubbard-Holstein model: enhancement of $s$-wave pairing between charge and magnetic orders