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Russian Journal of General Chemistry

, Volume 89, Issue 6, pp 1129–1135 | Cite as

Synthesis, Interatomic Interactions, Structure, and Conductivity of Lanthanum Gallate Doped with Nickel and Magnesium

  • D. A. KorolevEmail author
  • N. V. Chezhina
  • O. V. Glumov
Article
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Abstract

The coexistence of two crystal modifications of lanthanum gallate, orthorhombic and rhombohedral, was revealed for the first time in two series of solutions: LaNixMg0.2xGa1–1.2xO3−δ ([Ni]: [Mg] = 5: 1) and LaNixMg0.5xGa1–15xO3−δ ([Ni]: [Mg] = 2: 1), x = 0.01–0.10. The unit cell parameters in the both series of solid solutions were refined by the Rietveld method. The magnetic susceptibility measurements point to the presence of clusters of Ni(III) atoms with strong antiferromagnetic interactions. The conductivity measurements point to high conductivity values for the system with the ratio [Ni]: [Mg] = 5 : 1.

Keywords

electron-ionic conductors perovskite orthorhombic and rhombohedral modifications magnetic properties conductivity 

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • D. A. Korolev
    • 1
    Email author
  • N. V. Chezhina
    • 1
  • O. V. Glumov
    • 1
  1. 1.St. Petersburg State UniversitySt. PetersburgRussia

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