{
  "id": "1202.5545",
  "version": "v2",
  "published": "2012-02-24T20:49:38.000Z",
  "updated": "2012-07-25T15:59:20.000Z",
  "title": "Magnetic phases in the one-dimensional Kondo chain on a metallic surface",
  "authors": [
    "Alejandro M. Lobos",
    "Miguel A. Cazalilla",
    "Piotr Chudzinski"
  ],
  "comment": "15 pages, 3 figures. New version contains clarifications about the specific approximations. Accepted for publication in PRB",
  "journal": "Phys. Rev. B 86, 079902 (2012)",
  "doi": "10.1103/PhysRevB.86.035455",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.str-el"
  ],
  "abstract": "We study the low-temperature properties of a one-dimensional spin-1/2 chain of magnetic impurities coupled to a (normal) metal environment by means of anisotropic Kondo exchange. In the case of easy-plane anisotropy, we obtain the phase diagram of this system at T=0. We show that the in-plane Kondo coupling destabilizes the Tomonaga-Luttinger phase of the spin-chain, and leads to two different phases: i) At strong Kondo coupling, the spins in the chain form Kondo singlets and become screened by the metallic environment, and ii) At weak and intermediate Kondo coupling, we find a novel dissipative phase characterized by diffusive gapless spin excitations. The two phases are separated by a quantum critical point of the Wilson-Fisher universality class with dynamical exponent $z\\simeq2$.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2012-07-25T15:59:20.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "75.10.Pq",
      "75.20.Hr",
      "75.40.-s"
    ],
    "keywords": [
      "one-dimensional kondo chain",
      "metallic surface",
      "magnetic phases",
      "chain form kondo singlets",
      "in-plane kondo coupling destabilizes"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "year": 2012,
      "month": "Jul",
      "volume": 86,
      "number": 3,
      "pages": "035455"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 15,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2012PhRvB..86c5455L"
    }
  }
}