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Inorganic Materials

, Volume 54, Issue 12, pp 1187–1192 | Cite as

Effect of Particle Size on the Magnetostructural Transformation of a Manganese Monoarsenide-Based Phase in the ZnGeAs2–MnAs System

  • S. F. MarenkinEmail author
  • A. N. Aronov
  • I. V. Fedorchenko
  • A. L. Zheludkevich
  • A. V. Khoroshilov
  • V. V. Kozlov
Article

Abstract

We have studied the caloric and magnetic properties of alloys in the MnAs–ZnGeAs2 eutectic system. The results demonstrate that the heat effect and temperature range of the ferromagnetic-to-paramagnetic phase transformation depend on the crystallite size of manganese arsenide. Reducing the crystallite size to ≤60 nm causes the heat effect of the transformation to disappear, significantly changes the temperature range of the magnetic transition, and raises the Curie temperature of the alloy to 351 K.

Keywords:

dispersion nanocomposite ferromagnet semiconductor 

Notes

ACKNOWLEDGMENTS

This work was supported by the Russian Foundation for Basic Research (grant no. 17-53-04055) and in part by the Presidium of the Russian Academy of Sciences (program no. 1.35: Scientific Principles behind Advanced Functional Materials).

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Copyright information

© Pleiades Publishing, Inc. 2018

Authors and Affiliations

  • S. F. Marenkin
    • 1
    • 2
    Email author
  • A. N. Aronov
    • 1
  • I. V. Fedorchenko
    • 1
  • A. L. Zheludkevich
    • 3
  • A. V. Khoroshilov
    • 1
  • V. V. Kozlov
    • 4
  1. 1.Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of SciencesMoscowRussia
  2. 2.Moscow Institute of Steel and Alloys (National University of Science and Technology)MoscowRussia
  3. 3.Scientific–Practical Materials Research Centre (State Research and Production Association), Belarussian Academy of SciencesMinskBelarus
  4. 4.Topchiev Institute of Petrochemical Synthesis, Russian Academy of SciencesMoscowRussia

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