{
  "abstract": "Cuprate superconductors remain central to condensed matter physics due to their technological relevance and unconventional, incompletely understood electronic behavior. While the canonical phase diagram and low-energy models have been shaped largely by studies of underdoped and moderately doped cuprates, the overdoped regime has received comparatively limited attention. Here, we track the evolution of the electronic structure from optimal to heavy overdoping in La2-xSrxCuO₄ (LSCO) using broadband optical spectroscopy across x = 0.15-0.60. The measured spectral changes-including the redistribution of Zhang-Rice-related spectral weight-are in qualitative agreement with determinant quantum Monte Carlo (DQMC) simulations of the three-orbital Emery model, which together indicate a pronounced reconstruction of the electronic structure beyond hole concentrations x > 0.2. Guided by these observations, we propose a spontaneous checkerboard-type Zhang-Rice electronic configuration that accounts for the coexistence of itinerant and localized carriers characteristic of the heavily overdoped state. Our results refine the doping-dependent Zhang-Rice-based framework for cuprates, illuminate how correlations persist deep into the overdoped regime, and provide new constraints on microscopic mechanisms of high-temperature superconductivity, with broader implications for correlated transition-metal oxides.",
  "abstract_shown": true,
  "affiliations": [
    "Shanghai Key Laboratory of High Temperature Superconductors, Center for Quantum Science and Technology, Department of Physics, Shanghai University, Shanghai, China.",
    "Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, China.",
    "School of Physical Science and Technology, Soochow University, Suzhou, China.",
    "School of Electronic Science & Engineering, Southeast University, Nanjing, China.",
    "Department of Physics, Faculty of Science, National University of Singapore, Singapore, Republic of Singapore.",
    "Department of Materials Science and Engineering, National University of Singapore, Singapore, Republic of Singapore.",
    "Singapore Synchrotron Light Source (SSLS), National University of Singapore, 5 Research Link, Singapore, Republic of Singapore.",
    "Singapore Synchrotron Light Source (SSLS), National University of Singapore, 5 Research Link, Singapore, Republic of Singapore. slscst@nus.edu.sg.",
    "Department of Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada. sawatzky@physics.ubc.ca.",
    "School of Physical Science and Technology, Soochow University, Suzhou, China. jiangmi@suda.edu.cn.",
    "Institute for Quantum Science, School of Physical Science and Technology, Soochow University, Suzhou, China. jiangmi@suda.edu.cn.",
    "Shanghai Key Laboratory of High Temperature Superconductors, Center for Quantum Science and Technology, Department of Physics, Shanghai University, Shanghai, China. yinxinmao@shu.edu.cn."
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 16,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Xiongfang Liu",
      "orcid": "0009-0007-7138-918X"
    },
    {
      "affs": [
        1
      ],
      "name": "Kun Han",
      "orcid": "0009-0004-8989-414X"
    },
    {
      "affs": [
        2
      ],
      "name": "Yan Peng"
    },
    {
      "affs": [
        0
      ],
      "name": "Yuanjie Ning"
    },
    {
      "affs": [
        3
      ],
      "name": "Jing Wu",
      "orcid": "0000-0002-4182-6701"
    },
    {
      "affs": [
        4
      ],
      "name": "Zhaoyang Luo"
    },
    {
      "affs": [
        0
      ],
      "name": "Difan Zhou"
    },
    {
      "affs": [
        0
      ],
      "name": "Zhigang Zeng"
    },
    {
      "affs": [
        5
      ],
      "name": "Qian He",
      "orcid": "0000-0003-4891-3581"
    },
    {
      "affs": [
        0
      ],
      "name": "Chuanbing Cai"
    },
    {
      "affs": [
        4,
        6
      ],
      "name": "Mark B H Breese"
    },
    {
      "affs": [
        4
      ],
      "name": "Ariando Ariando"
    },
    {
      "affs": [
        7
      ],
      "name": "Chi Sin Tang",
      "orcid": "0000-0002-2414-7192"
    },
    {
      "affs": [
        8
      ],
      "name": "George A Sawatzky",
      "orcid": "0000-0003-1265-2770"
    },
    {
      "affs": [
        9,
        10
      ],
      "name": "Mi Jiang"
    },
    {
      "affs": [
        11
      ],
      "name": "Xinmao Yin",
      "orcid": "0000-0002-8246-4444"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/394ejetmhk754.bib",
  "cited_by": 0,
  "doi": "10.1038/s41467-026-77985-0",
  "fulltext_url": "https://europepmc.org/articles/PMC13683379",
  "id": "394ejetmhk754",
  "issns": [
    "2041-1723"
  ],
  "landing_url": "https://europepmc.org/article/MED/42901930",
  "language": "eng",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "3104|Physics of Superconductivity and Magnetism"
    ]
  ],
  "openalex": "W4417291553",
  "pdf_url": "https://europepmc.org/articles/PMC13683379?pdf=render",
  "pmcid": "PMC13683379",
  "pmid": "42901930",
  "published": "2026-09-19",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/394ejetmhk754.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:41Z",
      "native_id": "MED:42901930",
      "source": "europepmc",
      "url": "https://europepmc.org/article/MED/42901930"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "openalex:3104|Physics of Superconductivity and Magnetism",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Checkerboard-type Zhang-Rice states in overdoped cuprate superconductors.",
  "title_text": "Checkerboard-type Zhang-Rice states in overdoped cuprate superconductors.",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:19:41Z",
  "url": "https://research.draconitic.com/paper/394ejetmhk754",
  "venue": "Nature communications",
  "versions": []
}