{
  "abstract": "Phase-sensitive experiments based on Josephson tunneling have been considered as a pivotal method to determine the pairing symmetry in high-temperature (high-Tc) cuprate superconductors. However, in iron-based superconductors, traditional phase-sensitive experiments face setbacks because of the complexity of pairing symmetry in multiband systems. Here, using scanning Josephson tunneling microscopy (SJTM), we report the half-unit-cell periodic Josephson tunneling modulations in monolayer high-Tc Fe(Te,Se) film epitaxially grown on SrTiO3(001). The Josephson tunneling almost vanishes along the lines connecting next-nearest-neighbor Fe atoms under an s-wave superconducting tip. Combined with single-particle tunneling spectra showing the full superconducting gap, our experimental results are consistent with the sign-reversal nodeless d-wave pairing symmetry. Our findings provide sub-unit-cell scale superconducting phase information for understanding the mechanism of high-Tc superconductivity. We anticipate our work as a starting point for atomically resolved Josephson interference experiments using SJTM in various unconventional superconductors.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.38421",
  "author_total": 6,
  "authors": [
    {
      "name": "Tianheng Wei"
    },
    {
      "name": "Yanzhao Liu"
    },
    {
      "name": "Wei Ren"
    },
    {
      "name": "Zhen Liang"
    },
    {
      "name": "Ziqiang Wang"
    },
    {
      "name": "Jian Wang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/6mfbk0qayzz5h.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.38421",
  "fulltext_url": null,
  "id": "6mfbk0qayzz5h",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.38421",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mes-hall"
    ],
    [
      "arxiv",
      "cond-mat.mtrl-sci"
    ],
    [
      "arxiv",
      "cond-mat.str-el"
    ],
    [
      "arxiv",
      "cond-mat.supr-con"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2610.38421",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-28",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/6mfbk0qayzz5h.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:36:23Z",
      "native_id": "2610.38421",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.38421"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    }
  ],
  "title": "Direct real-space imaging of sign-reversal superconducting state by scanning Josephson tunneling",
  "title_text": "Direct real-space imaging of sign-reversal superconducting state by scanning Josephson tunneling",
  "type": "preprint",
  "updated_at": "2026-11-01T12:20:44Z",
  "url": "https://research.draconitic.com/paper/6mfbk0qayzz5h",
  "venue": "arXiv",
  "versions": []
}