Electron-Correlation-Assisted Charge Stripe Order in a Kagome Superconductor
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Le résumé fourni par la source
A central mystery in high-temperature cuprate superconductors is the coexistence of multiple exotic orders, which is presumably associated with strong electronic correlation. The ongoing interest in this enigmatic phenomenon is further energized when similar electronic orders and states emerge and coexist in less correlated kagome superconductors. Here, by utilizing angle-resolved photoemission spectroscopy (ARPES), nuclear magnetic resonance (NMR) spectroscopy, scanning tunneling microscopy (STM) and first-principles calculations, we reveal the sudden emergence of a distinct short-range charge stripe order in Sn-doped CsV 3 Sb 5 kagome superconductors when the long-range 2 × 2 charge density wave order in pristine CsV 3 Sb 5 is suppressed. This short-range stripe order features a modulation vector of approximately 1 / 3 along one of the three lattice directions, induces remarkable quasiparticle scattering between the original quasi-1D kagome d bands and their replica of folding, and clearly suppresses the electron density of states at the Fermi level. Our first-principles calculations reveal that 3 × 1 supermodulation represents a hidden secondary instability in pristine CsV 3 Sb 5 . This instability is further enhanced by in-plane chemical pressure induced by Sn substitution, and coupled to the electronic correlation, leading to a unique charge stripe order in the system. As such, our results reveal a new route toward emergent electronic orders via cooperative interactions between the lattice and electronic degrees of freedom.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Electron-Correlation-Assisted Charge Stripe Order in a Kagome Superconductor
- Date Crossref
- 01/12/2025
- Éditeur
- American Physical Society (APS)
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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University of Science and Technology of China Department of Physics pays non établi dans la noticeUniversité ou école supérieure
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Hefei National Center for Physical Sciences at Nanoscale pays non établi dans la noticeStructure de recherche
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Fuzhou University Department of Physics pays non établi dans la noticeUniversité ou école supérieure
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Collaborative Innovation Center of Advanced Microstructures pays non établi dans la noticeStructure de recherche
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Nanjing University Collaborative Innovation Center of Advanced Microstructures pays non établi dans la noticeUniversité ou école supérieure
Department of Physics — University of Science and Technology of China, Hefei National Center for Physical Sciences at Nanoscale et Department of Physics — Fuzhou University, avec 2 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.