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Neutron Diffraction Study of Magnetic and Structural Transitions in Complex Nb-Doped Cobalt Oxides

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Abstract

The magnetic and structural transitions in rhombohedral La0.7Sr0.3Co1 – xNbxO3 and cubic La0.3Sr0.7Co1 – xNbxO3 have been studied as a function of Nb content and temperature by using of neutron and X-ray diffraction. The increase in the Nb concentration leads to the gradual increase in the lattice volume and significant decrease in the magnetic moment which completely disappears at the niobium doping level higher than 0.1. No essential structure changes and rhombohedral distortions have been found.

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Funding

This work has been supported by Russian Foundation for Basic Research, grant no. 18-52-00020, and Belarus Foundation for Basic Research, grant no. F18R-159.

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Authors and Affiliations

  1. Joint Institute for Nuclear Research, 141980, Dubna, Moscow oblast, Russia

    V. V. Sikolenko, V. V. Efimov & S. I. Tiutiunnikov

  2. Research and Educational Centre “Functional nanomaterials,” Immanuel Kant Baltic Federal University, 236041, Kaliningrad, Russia

    V. V. Sikolenko

  3. Scientific-Practical Material Research Centre, National Academy of Sciences of Belarus, 220072, Minsk, Belarus

    D. V. Karpinsky & M. V. Bushinsky

  4. Helmholtz Zentrum Berlin, 14109, Berlin, Germany

    S. Schorr

  5. Freie University Berlin, 14195, Berlin, Germany

    S. Schorr

Authors
  1. V. V. Sikolenko
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  2. V. V. Efimov
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  3. D. V. Karpinsky
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  4. M. V. Bushinsky
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  5. S. I. Tiutiunnikov
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  6. S. Schorr
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Correspondence to V. V. Sikolenko.

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Sikolenko, V.V., Efimov, V.V., Karpinsky, D.V. et al. Neutron Diffraction Study of Magnetic and Structural Transitions in Complex Nb-Doped Cobalt Oxides. J. Surf. Investig. 14 (Suppl 1), S218–S220 (2020). https://doi.org/10.1134/S1027451020070447

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  • DOI: https://doi.org/10.1134/S1027451020070447

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