Superconductivity Reinforces Charge-Density-Wave Phase Coherence across Cuprates

Abstract

For decades, superconductivity in high-Tc cuprates has been viewed as a competitor that suppresses charge-density-wave (CDW) order by reducing its amplitude and spatial extent. Here, we show that this picture is incomplete, as superconductivity is accompanied by a systematic enhancement of CDW phase coherence across multiple cuprate families. Using resonant soft x-ray scattering combined with a coherence-sensitive momentum-profile analysis, we uncover a BCS-like growth of phase coherence below Tc, which phenomenologically manifests as the absence of CDW peak broadening and near-perfect wave-vector locking. This enhancement remains visible even in a disorder-dominated regime created by long-term crystal aging and follows a common trend when compared with published data on Bi-, Hg-, Y-, and Nd-based cuprates. These results indicate that superconductivity reshapes CDW order in two distinct ways, suppressing its amplitude while strengthening its phase coherence, and reveal an additional phase-level interplay with lattice coupling in high-Tc cuprates.

References in corpus (46)

• Electronic Liquid Crystal Phases of a Doped Mott Insulator
• Long-range incommensurate charge fluctuations in (Y,Nd)Ba2Cu3O(6+x)
• Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3Oy
• Magnetic-field-induced charge-stripe order in the high temperature superconductor YBa2Cu3Oy
• Ubiquitous Interplay between Charge Ordering and High-Temperature Superconductivity in Cuprates
• Three-Dimensional Charge Density Wave Order in YBa2Cu3O6.67 at High Magnetic Fields
• Electron-phonon coupling reflecting dynamic charge inhomogeneity in copper-oxide superconductors
• Resonant X-ray Scattering Study of Charge Density Wave Correlations in YBa${}_2$Cu${}_3$O${}_{6+x}$
• Striped superconductors: How the cuprates intertwine spin, charge and superconducting orders
• Inhomogeneity of charge density wave order and quenched disorder in a high Tc superconductor
• Connection between charge-density-wave order and charge transport in the cuprate superconductors
• Giant phonon anomalies and central peak due to charge density wave formation in YBa${}_2$Cu${}_3$O${}_{6.6}$
• Incipient charge order observed by NMR in the normal state of YBa2Cu3Oy
• Quenched disorder and vestigial nematicity in the pseudo-gap regime of the cuprates
• Emergence of charge order from the vortex state of a high temperature superconductor
• X-ray diffraction observation of charge density wave order at zero magnetic field in ortho-II YBa${}_2$Cu${}_3$O${}_{6.54}$
• Thermodynamic phase diagram of static charge order in underdoped YBCO
• Charge density wave fluctuations in La2-xSrxCuO4 and their competition with superconductivity
• Momentum-dependent charge correlations in YBa${}_2$Cu${}_3$O${}_{6+\delta }$ superconductors probed by resonant x-ray scattering: Evidence for three competing phases
• Landau Theory of Stripe Phases in Cuprates and Nickelates
• Hole crystallization in the spin ladder of Sr14Cu24O41
• Fluctuating charge density waves in a cuprate superconductor
• Dynamical charge density fluctuations pervading the phase diagram of a Cu-based high-Tc superconductor
• Magnetic field controlled charge density wave coupling in underdoped YBa${}_2$Cu${}_3$O${}_{6+x}$
• Topological Defects Coupling Smectic Modulations to Intra-unit-cell Nematicity in Cuprate
• Dispersive charge density wave excitations and temperature dependent commensuration in Bi2Sr2CaCu2O8+δ
• Angular fluctuations of a multi-component order describe the pseudogap regime of the cuprate superconductors
• High Temperature Superconductivity: Ineluctable Complexity
• Ideal charge density wave order in the high-field state of superconducting YBCO
• Charge density waves in cuprate superconductors beyond the critical doping
• Rotated stripe order and its competition with superconductivity in La${}_{1.88}$Sr${}_{0.12}$CuO${}_4$
• A Structural Probe of the Doped Holes in Cuprate Superconductors
• Observation of two types of charge density wave orders in superconducting La${}_{2-x}$Sr${}_x$CuO${}_4$
• Synchrotron x-ray scattering study of charge-density-wave order in HgBa${}_2$CuO${}_{4+\delta }$
• Directly characterizing the relative strength and momentum dependence of electron-phonon coupling using resonant inelastic x-ray scattering
• Nematicity in stripe ordered cuprates probed via resonant x-ray scattering
• Measurement of x-ray absorption spectra of overdoped high-temperature cuprate superconductors: Inapplicability of the single-band Hubbard model
• Enhanced charge density wave coherence in a light-quenched, high-temperature superconductor
• Spectroscopic Evidence for Charge Order Melting via Quantum Fluctuations in a Cuprate
• Isotope effect and bond-stretching phonon anomaly in high-Tc cuprates
• Phonon anomalies and dynamic stripes
• Checkerboard order in vortex cores from pair-density-wave superconductivity
• Two-dimensional superconducting fluctuations associated with charge density wave stripes in La${}_{1.87}$Sr${}_{0.13}$Cu${}_{0.99}$Fe${}_{0.01}$O${}_4$
• Characterization of photoinduced normal state through charge density wave in superconducting YBa${}_2$Cu${}_3$O${}_{6.67}$
• Stripe Symmetry of Short-range Charge Density Waves in Cuprate Superconductors
• Introducing new resonant soft x-ray scattering capability in SSRL