{
  "abstract": "Artificial spin chains composed of switchable units are a key objective in molecular spintronics, but their creation on surfaces is a challenge. Spin-crossover molecules allow for the reversible switching between spin states and could provide a means of creating such functional nanostructures through on-surface synthesis. We report the first on-surface thermally activated Ullmann coupling of spin-crossover complexes on a Ag(111) surface. Using scanning tunneling microscopy, we demonstrated the formation of molecular chains with electrically tunable spin states. The conductance spectra of individual molecules in chains exhibit spin-flip excitations. A comparison to a Heisenberg spin chain shows that the spins are antiferromagnetically coupled. Reversible manipulation of the molecules in the chains suppresses the spin excitations, indicating a transition from high spin to low spin S = 0. Overall, these observations confirm that Ullmann coupling on surfaces is a viable strategy for engineering electrically programmable spin chains with a spin-crossover functionality.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 8,
  "authors": [
    {
      "name": "Biswajit Pabi"
    },
    {
      "name": "Lydia Adam"
    },
    {
      "name": "Jan Krahmer"
    },
    {
      "name": "Beshr Madaraty"
    },
    {
      "name": "Cyrille Barreteau"
    },
    {
      "name": "Alexander Weismann"
    },
    {
      "name": "Felix Tuczek"
    },
    {
      "name": "Richard Berndt"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/dh8jb4by5kcft.bib",
  "cited_by": 0,
  "doi": "10.1021/jacs.6c15342",
  "fulltext_url": null,
  "id": "dh8jb4by5kcft",
  "issns": [
    "0002-7863",
    "1520-5126"
  ],
  "landing_url": "https://hal.science/hal-05766557v1",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.chim"
    ],
    [
      "hal",
      "0.phys"
    ],
    [
      "openalex",
      "2504|Magnetism in coordination complexes"
    ]
  ],
  "openalex": "W7214402771",
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-25",
  "publisher": "American Chemical Society",
  "ris": "https://research.draconitic.com/paper/dh8jb4by5kcft.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:42Z",
      "native_id": "hal-05766557",
      "source": "hal",
      "url": "https://hal.science/hal-05766557v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:2504|Magnetism in coordination complexes",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Chains of Spin-Crossover Complexes Synthesized on the Ag(111) Surface",
  "title_text": "Chains of Spin-Crossover Complexes Synthesized on the Ag(111) Surface",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:42Z",
  "url": "https://research.draconitic.com/paper/dh8jb4by5kcft",
  "venue": "Journal of the American Chemical Society",
  "versions": []
}