Stripe Symmetry of Short-range Charge Density Waves in Cuprate Superconductors
| Autor: | Choi, Jaewon, Li, Jiemin, Nag, Abhishek, Pelliciari, Jonathan, Robarts, Hannah, Tam, Charles C., Walters, Andrew, Agrestini, Stefano, García-Fernández, Mirian, Song, Dongjoon, Eisaki, Hiroshi, Johnston, Steven, Comin, Riccardo, Ding, Hong, Zhou, Ke-Jin |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Advanced Materials 36, 2307515 (2024) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1002/adma.202307515 |
| Popis: | 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. Comment: 9 pages, 3 figures and Supplementary Information; Under peer review |
| Databáze: | arXiv |
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