{
  "id": "2101.00821",
  "version": "v1",
  "published": "2021-01-04T08:15:37.000Z",
  "updated": "2021-01-04T08:15:37.000Z",
  "title": "Spin-glass dynamics in the presence of a magnetic field]{Spin-glass dynamics in the presence of a magnetic field: exploration of microscopic properties",
  "authors": [
    "I. Paga",
    "Q. Zhai",
    "M. Baity-Jesi",
    "E. Calore",
    "A. Cruz",
    "L. A. Fernandez",
    "J. M. Gil-Narvion",
    "I. Gonzalez-Adalid Pemartin",
    "A Gordillo-Guerrero",
    "D. Iñiguez",
    "A. Maiorano",
    "E. Marinari",
    "V. Martin-Mayor",
    "J. Moreno-Gordo",
    "A. Muñoz-Sudupe",
    "D. Navarro",
    "R. L. Orbach",
    "G. Parisi",
    "S. Perez-Gaviro",
    "F. Ricci-Tersenghi",
    "J. J. Ruiz-Lorenzo",
    "S. F. Schifano",
    "D. L. Schlagel",
    "D. Seoane",
    "A. Tarancon",
    "R. Tripiccione",
    "D. Yllanes"
  ],
  "comment": "49 pages, figures 25",
  "categories": [
    "cond-mat.dis-nn"
  ],
  "abstract": "The synergy between experiment, theory, and simulations enables a microscopic analysis of spin-glass dynamics in a magnetic field in the vicinity of and below the spin-glass transition temperature $T_\\mathrm{g}$. The spin-glass correlation length, $\\xi(t,t_\\mathrm{w};T)$, is analysed both in experiments and in simulations in terms of the waiting time $t_\\mathrm{w}$ after the spin glass has been cooled down to a stabilised measuring temperature $T<T_\\mathrm{g}$ and of the time $t$ after the magnetic field is changed. This correlation length is extracted experimentally for a CuMn 6 at. % single crystal, as well as for simulations on the Janus II special-purpose supercomputer, the latter with time and length scales comparable to experiment. The non-linear magnetic susceptibility is reported from experiment and simulations, using $\\xi(t,t_\\mathrm{w};T)$ as the scaling variable. Previous experiments are reanalysed, and disagreements about the nature of the Zeeman energy are resolved. The growth of the spin-glass magnetisation in zero-field magnetisation experiments, $M_\\mathrm{ZFC}(t,t_\\mathrm{w};T)$, is measured from simulations, verifying the scaling relationships in the dynamical or non-equilibrium regime. Our preliminary search for the de Almeida-Thouless line in $D=3$ is discussed.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2021-01-04T08:15:37.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "magnetic field",
      "spin-glass dynamics",
      "microscopic properties",
      "simulations",
      "exploration"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 49,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}