{
  "id": "cond-mat/9812085",
  "version": "v3",
  "published": "1998-12-05T01:47:36.000Z",
  "updated": "1998-12-17T17:41:26.000Z",
  "title": "Kinky Behavior in Josephson Junctions",
  "authors": [
    "A. V. Rozhkov",
    "Daniel P. Arovas"
  ],
  "comment": "7 pages, 7 encapsulated PostScript figures; figure 3 corrected",
  "journal": "Phys. Rev. Lett. 82, 2788 (1999)",
  "doi": "10.1103/PhysRevLett.82.2788",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.supr-con"
  ],
  "abstract": "We analyze nonperturbatively the behavior of a Josephson junction in which two BCS superconductors are coupled through an Anderson impurity. We recover earlier perturbative results which found that a $\\delta=\\pi$ phase difference is preferred when the impurity is singly occupied and the on-site Coulomb interaction is large. We find a novel intermediate phase in which one of $\\delta=0$ and $\\delta=\\pi$ is stable while the other is metastable, with the energy $E(\\delta)$ having a kink somewhere in between. As a consequence of the kink, the $I-V$ characteristics of the junction are modified at low voltages.",
  "revisions": [
    {
      "version": "v3",
      "updated": "1998-12-17T17:41:26.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "josephson junction",
      "kinky behavior",
      "on-site coulomb interaction",
      "novel intermediate phase",
      "earlier perturbative results"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}