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Specific features of magnetic properties upon martensitic transition M ↔ L21 in Ni2 + x Mn1 − x Ga alloys

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Abstract

The paramagnetic susceptibility of Ni2 + x Mn1 − x Ga alloys with x = 0.12, 0.16, 0.19, 0.21, 0.23, 0.24, 0.27, 0.3, 0.33, 0.36, and 0.39 was measured at H = 5 kOe in the temperature range of 400–800 K. It was shown that the degree of tetragonal distortion c/a and the parameters characterizing the electronic (χ0) and magnetic (θ P and μ 2eff ) subsystems of the alloys change anomalously sharply in the range 0.27 < x < 0.3 when the number of valence electrons per atom is e/a ∼ 7.7.

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Authors and Affiliations

  1. Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, ul. Sofii Kovalevskoi 18, Yekaterinburg, 620990, Russia

    A. V. Korolev, N. I. Kourov & V. G. Pushin

  2. Ural Federal University named after the First President of Russia B. N. Yeltsin, ul. Mira 19, Yekaterinburg, 620002, Russia

    V. G. Pushin

Authors
  1. A. V. Korolev
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  2. N. I. Kourov
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  3. V. G. Pushin
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Correspondence to N. I. Kourov.

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Original Russian Text © A.V. Korolev, N.I. Kourov, V.G. Pushin, 2015, published in Fizika Tverdogo Tela, 2015, Vol. 57, No. 2, pp. 302–304.

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Korolev, A.V., Kourov, N.I. & Pushin, V.G. Specific features of magnetic properties upon martensitic transition M ↔ L21 in Ni2 + x Mn1 − x Ga alloys. Phys. Solid State 57, 316–319 (2015). https://doi.org/10.1134/S1063783415020201

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  • DOI: https://doi.org/10.1134/S1063783415020201

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