{
  "id": "2101.09091",
  "version": "v1",
  "published": "2021-01-22T13:10:19.000Z",
  "updated": "2021-01-22T13:10:19.000Z",
  "title": "The ambivalent competition of Coulomb and van-der-Waals interactions in Xe-Cs+ aggregates on Cu(111) surfaces",
  "authors": [
    "J. Thomas",
    "C. Bertram",
    "J. Daru",
    "P. Zhou",
    "D. Marx",
    "K. Morgenstern",
    "U. Bovensiepen"
  ],
  "comment": "5 pages, 4 figures",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "Microscopic insight into interactions is key for understanding the properties of heterogenous interfaces. We analyze local attraction and repulsion in non-covalently bonded Xe-Cs+ aggregates on Cu(111). By combining two-photon photoemission spectroscopy, scanning tunneling microscopy, and coupled cluster calculations we explain the intricate impact Xe has on Cs+/Cu(111). We find that attraction between Cs+ and Xe counterbalances the screened Coulomb repulsion between Cs+ on Cu(111). Furthermore, we observe that the Cs 6s electron is repelled from Cu(111) due to xenon's electron density. Together, this yields a dual, i.e. attractive or repulsive, response of Xe depending on the positive or negative charge of the respective counterparticle, which emphasizes the importance of the Coulomb interaction in these systems.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2021-01-22T13:10:19.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "ambivalent competition",
      "van-der-waals interactions",
      "aggregates",
      "analyze local attraction",
      "xenons electron density"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}