{
  "id": "2410.07777",
  "version": "v1",
  "published": "2024-10-10T10:08:28.000Z",
  "updated": "2024-10-10T10:08:28.000Z",
  "title": "Structural Manipulation of Spin Excitations in a Molecular Junction",
  "authors": [
    "Maximilian Kögler",
    "Nicolas Néel",
    "Laurent Limot",
    "Jörg Kröger"
  ],
  "categories": [
    "cond-mat.mes-hall",
    "quant-ph"
  ],
  "abstract": "Single metallocene molecules act as sensitive spin detectors when decorating the probe of a scanning tunneling microscope (STM). However, the impact of the atomic-scale electrode details on the molecular spin state has remained elusive to date. Here, a nickelocene (Nc) STM junction is manipulated in an atom-wise manner showing clearly the dependence of the spin excitation spectrum on the anchoring of Nc to Cu(111), a Cu monomer and trimer. Moreover, while the spin state of the same Nc tip is a triplet with tunable spin excitation energies upon contacting the surface, it transitions to a Kondo-screened doublet on a Cu atom. Notably, the non-trivial magnetic exchange interaction of the molecular spin with the electron continuum of the substrate determines the spectral line shape of the spin excitations.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2024-10-10T10:08:28.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "molecular junction",
      "structural manipulation",
      "non-trivial magnetic exchange interaction",
      "single metallocene molecules act",
      "molecular spin state"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}