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Concentration and temperature dependence of the structural, magnetic, and dielectric properties of La 2 Ni(Mn 1-x Ru x )O 6 solid solutions

Journal of alloys and compounds, 2023, Vol.968 [Peer Reviewed Journal]

ISSN: 1873-4669 ;ISSN: 0925-8388 ;EISSN: 1873-4669 ;DOI: 10.1016/j.jallcom.2023.171885

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  • Title:
    Concentration and temperature dependence of the structural, magnetic, and dielectric properties of La 2 Ni(Mn 1-x Ru x )O 6 solid solutions
  • Author: Pramanik, P. ; Ivanov, Sergey ; Turkin, D. I. ; Bazuev, G. V. ; Joshi, D. C. ; Gyrdasova, O. I. ; Mathieu, Roland
  • Subjects: Cationic order ; Dielectric properties ; Insulating ferromagnets ; Magnetic oxides ; Structural properties
  • Is Part Of: Journal of alloys and compounds, 2023, Vol.968
  • Description: The crystal structure, magnetic ordering, and dielectric characteristics of polycrystalline powder samples of La2NiMn1-xRuxO6 (x = 0.25-0.75) solid solutions have been studied. The X-ray diffraction results were analysed in detail, and reliably show that all compounds have a monoclinic (P2(1)/n) structure with Ni and Mn/Ru ions occupying the 2c and 2d sites, respectively. Magnetic susceptibility measurements reveal a ferromagnetic order for La2NiMn0.75Ru0.25O6 and La2NiMn0.5Ru0.5O6. The ferromagnetic transition temperature decreases from 200 K for La2NiMn0.75Ru0.25O6 to 175 K for La2NiMn0.5Ru0.5O6. Dielectric measurements show large dielectric constants (similar to 10(4)) at room temperature. In addition, the temperature-dependent loss-tangent Tan delta(T) curves reveal relaxation characteristics due to charge transfer between nearest cations.
  • Language: English
  • Identifier: ISSN: 1873-4669
    ISSN: 0925-8388
    EISSN: 1873-4669
    DOI: 10.1016/j.jallcom.2023.171885
  • Source: SWEPUB Freely available online
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