Stripe Symmetry of Short-range Charge Density Waves in Cuprate Superconductors

Abstract

The omnipresence of charge density waves (CDWs) across almost all cuprate families underpins a common organizing principle. However, a longstanding debate of whether its spatial symmetry is stripe or checkerboard remains unresolved. While CDWs in lanthanum- and yttrium-based cuprates possess a stripe symmetry, distinguishing these two scenarios has been challenging for the short-range CDW in bismuth-based cuprates. Here, we employed high-resolution resonant inelastic x-ray scattering to uncover the spatial symmetry of the CDW in Bi${}_2$Sr${}_{2-x}$La${}_x$CuO${}_{6+\delta }$. Across a wide range of doping and temperature, anisotropic CDW peaks with elliptical shapes were found in reciprocal space. Based on Fourier transform analysis of real-space models, we interpret the results as evidence of unidirectional charge stripes, hosted by mutually 90${}^{\circ }$-rotated anisotropic domains. Our work paves the way for a unified symmetry and microscopic description of CDW order in cuprates.

9 pages, 3 figures and Supplementary Information; Under peer review

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Cited by in corpus (7)

• Anisotropic Spin Stripe Domains in Bilayer La${}_3$Ni${}_2$O${}_7$
• Strain-induced long-range charge-density wave order in the optimally doped Bi${}_2$Sr${}_{2-x}$La${}_x$CuO${}_6$ superconductor
• Fluctuating charge-density-wave correlations in the three-band Hubbard model
• Electronic procrystalline state in moire structures
• Contrasting $c$-axis and in-plane uniaxial stress effects on superconductivity and stripe order in La${}_{1.885}$Ba${}_{0.115}$CuO${}_4$
• Dual role of stripe phase on superconducting correlation in a bilayer square lattice
• Superconductivity Reinforces Charge-Density-Wave Phase Coherence across Cuprates