High-Temperature Charge-Stripe Correlations in La${}_{1.675}$Eu${}_{0.2}$Sr${}_{0.125}$CuO${}_4$

Abstract

We use resonant inelastic x-ray scattering to investigate charge-stripe correlations in La${}_{1.675}$Eu${}_{0.2}$Sr${}_{0.125}$CuO${}_4$. By differentiating elastic from inelastic scattering, it is demonstrated that charge-stripe correlations precede both the structural low-temperature tetragonal phase and the transport-defined pseudogap onset. The scattering peak amplitude from charge stripes decays approximately as $T^{-2}$ towards our detection limit. The in-plane integrated intensity, however, remains roughly temperature independent. Therefore, although the incommensurability shows a remarkably large increase at high temperature, our results are interpreted via a single scattering constituent. In fact, direct comparison to other stripe-ordered compounds (La${}_{1.875}$Ba${}_{0.125}$CuO${}_4$, La${}_{1.475}$Nd${}_{0.4}$Sr${}_{0.125}$CuO${}_4$ and La${}_{1.875}$Sr${}_{0.125}$CuO${}_4$) suggests a roughly constant integrated scattering intensity across all these compounds. Our results therefore provide a unifying picture for the charge-stripe ordering in La-based cuprates. As charge correlations in La${}_{1.675}$Eu${}_{0.2}$Sr${}_{0.125}$CuO${}_4$ extend beyond the low-temperature tetragonal and pseudogap phase, their emergence heralds a spontaneous symmetry breaking in this compound.

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• Strange metal behaviour from charge density fluctuations in cuprates
• Restored strange metal phase through suppression of charge density waves in underdoped YBa${}_2$Cu${}_3$O${}_{7-\delta }$
• Generic character of charge and spin density waves in superconducting cuprates
• Charge Order Lock-in by Electron-Phonon Coupling in La${}_{1.675}$Eu${}_{0.2}$Sr${}_{0.125}$CuO${}_4$
• Uniaxial Pressure Induced Stripe Order Rotation in La${}_{1.88}$Sr${}_{0.12}$CuO${}_4$
• Fate of charge order in overdoped La-based cuprates
• Superconductivity from charge order in cuprates
• Strain-Tuned Magnetic Frustration in a Square Lattice $J_1$-$J_2$ Material
• Stripe Symmetry of Short-range Charge Density Waves in Cuprate Superconductors
• Magnon interactions in a moderately correlated Mott insulator
• Interplay between atomic fluctuations and charge density waves in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Tuning of Charge Order by Uniaxial Stress in a Cuprate Superconductor
• Robust Charge-Density Wave Correlations in Optimally-Doped YBa2Cu3Oy
• Spin-stripe order tied to the pseudogap phase in La1.8-xEu0.2SrxCuO4
• Orbital-selective time-domain signature of nematicity dynamics in the charge-density-wave phase of La${}_{1.65}$Eu${}_{0.2}$Sr${}_{0.15}$CuO${}_4$
• Search for $Q\sim 0$ order near a forbidden Bragg position in Bi${}_{2.1}$Sr${}_{1.9}$CaCu${}_2$O${}_{8+x}$ with resonant soft x-ray scattering