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Synthesis and electrical and magnetic properties of LaSr2Mn2 − y Ni y O7 − δ solid solutions

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Abstract

LaSr2Mn2 − y Ni y O7 − δ layered manganite solid solutions with 0 < y ≤ 0.6 have been prepared by solid-state reactions and sol-gel processing. The synthesis procedure is shown to have a significant effect on the electrical and magnetic properties of LaSr2Mn2 − y Ni y O7 − δ ceramics. The highest conductivity is offered by the y = 0.2 material, which is due to partial destruction of Mn3+/Mn4+ charge order. Increasing the degree of nickel substitution on the manganese site influences the ferromagnetic properties of LaSr2Mn2 − y Ni y O7 − δ and shifts the magnetoresistance peak to lower temperatures.

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Authors and Affiliations

  1. Vernadsky Institute of General and Inorganic Chemistry, National Academy of Sciences of Ukraine, pr. Akademika Palladina 32/34, Kiev, 03142, Ukraine

    O. Z. Yanchevskii, D. A. Durilin & A. G. Belous

  2. Institute of Magnetism, National Academy of Sciences of Ukraine, bul’v. Akademika Vernadskogo 36b, Kiev, 03142, Ukraine

    A. I. Tovstolytkin

Authors
  1. O. Z. Yanchevskii
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  2. D. A. Durilin
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  3. A. I. Tovstolytkin
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  4. A. G. Belous
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Correspondence to O. Z. Yanchevskii.

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Original Russian Text © O.Z. Yanchevskii, D.A. Durilin, A.I. Tovstolytkin, A.G. Belous, 2011, published in Neorganicheskie Materialy, 2011, Vol. 47, No. 4, pp. 488–491.

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Yanchevskii, O.Z., Durilin, D.A., Tovstolytkin, A.I. et al. Synthesis and electrical and magnetic properties of LaSr2Mn2 − y Ni y O7 − δ solid solutions. Inorg Mater 47, 431–434 (2011). https://doi.org/10.1134/S0020168511040212

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  • DOI: https://doi.org/10.1134/S0020168511040212

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