{
  "id": "2004.07932",
  "version": "v1",
  "published": "2020-04-15T11:03:12.000Z",
  "updated": "2020-04-15T11:03:12.000Z",
  "title": "Frustration of Exchange-Striction Ferroelectric Ordering and Growth of Electric Polarization of Phase Separation Domains in R$_{0.8}$Ce$_{0.2}$Mn$_2$O$_5$ (R = Er, Tb) Solid Solutions",
  "authors": [
    "B. Kh. Khannanov",
    "E. I. Golovenchits",
    "V. A. Sanina"
  ],
  "comment": "21 pages, 4 figures. arXiv admin note: text overlap with arXiv:2002.05471",
  "journal": "Phys.Sol.St., v. 62, No. 4, p.p. 660-669. , 2020",
  "doi": "10.1134/S1063783420040125",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "The effect of rare-earth ions (R = Er$_3^+$, Tb$_3^+$, and Ce$_{3.75}^+$) on the dielectric properties and the electric polarization induced by local polar phase separation domains in solid solutions of R$_{0.8}$Ce$_{0.2}$Mn$_2$O$_5$ (R = Er, Tb) multiferroics has been studied. These parameters are found to qualitatively differ from those of initial RMn$_2$O$_5$ (R = Er, Tb) crystals studied before. It is shown that the properties of the polar phase separation domains that form in a subsystem of Mn3+ and Mn4+ ions due to a finite probability of tunneling electrons between these ions with different valences are substantially dependent on the values of crystal fields in which these domains exist. A combined influence of Er$_3^+$, Tb$_3^+$, and Ce$_{3.75}^+$ ions is found to substantially change the crystal field in R$_{0.8}$Ce$_{0.2}$ Mn$_2$O$_5$ (R = Er, Tb) as compared to RMn$_2$O$_5$ (R = Er, Tb).",
  "revisions": [
    {
      "version": "v1",
      "updated": "2020-04-15T11:03:12.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "electric polarization",
      "solid solutions",
      "exchange-striction ferroelectric ordering",
      "local polar phase separation domains"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 21,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}