May 9, 2019 Journal article Open Access

Nikolay Kalanda; Vasil Garamus; Mikhail Zheludkevich; Marta Yarmolich; Maria Serdechnova; Dietmar Christian Florian Wieland; Alexander Petrov; Aliaksandr Zhaludkevich; Nikolai A. Sobolev

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{
  "publisher": "Zenodo", 
  "DOI": "10.5281/zenodo.3691820", 
  "language": "eng", 
  "title": "Small-angle neutron scattering and magnetically heterogeneous state in Sr2FeMoO6\u2013\u03b4", 
  "issued": {
    "date-parts": [
      [
        2019, 
        5, 
        9
      ]
    ]
  }, 
  "abstract": "<p>Single-phase strontium ferromolybdate (Sr2FeMoO6&ndash;&delta;) samples with different degrees of the superstructural ordering of the Fe/Mo cations were obtained from partially reduced SrFeO3&ndash;\u0445, SrMoO4 precursors by the solid-state technology. The study of the temperature dependences of the magnetization measured in the field-cooling and zero-field-cooling regimes indicated an inhomogeneous magnetic state of the samples. The presence of magnetic regions of different nature has also been revealed by the small-angle neutron scattering. For the Sr2FeMoO6&ndash;&delta; samples with different superstructural ordering of the Fe/Mo cations and for all values of the magnetic field induction in the range up to 1.5 T and of the scattering vector in the interval 0.1 &gt;q &gt;0.005 &Aring;&ndash;1, the analytical dependence I ~ q&ndash;&alpha; obeys the Porod law (&alpha; &asymp; 4), which corresponds to an object with a smooth and well-marked surface and polydisperse grain size. Deviations from the Porod law in the q &gt; 0.1 &Aring;&ndash;1 region and a weakening of the neutron scattering in applied magnetic fields may be ascribed to magnetic inhomogeneities with diameters D &lt;6 nm, which are partially destroyed /oriented by magnetic fields \u0412 &ge;1.5 T.&nbsp;</p>", 
  "author": [
    {
      "family": "Nikolay Kalanda"
    }, 
    {
      "family": "Vasil Garamus"
    }, 
    {
      "family": "Mikhail Zheludkevich"
    }, 
    {
      "family": "Marta Yarmolich"
    }, 
    {
      "family": "Maria Serdechnova"
    }, 
    {
      "family": "Dietmar Christian Florian Wieland"
    }, 
    {
      "family": "Alexander Petrov"
    }, 
    {
      "family": "Aliaksandr Zhaludkevich"
    }, 
    {
      "family": "Nikolai A. Sobolev"
    }
  ], 
  "version": "Author Accepted Manuscript", 
  "type": "article-journal", 
  "id": "3691820"
}