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Features of magnetic phase transitions in iron-manganese arsenides of the type Fe a−x MnxAs (a≈1.6)

  • Magnetism and Ferroelectricity
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Abstract

This paper discusses how temperature/pressure processing affects the cascade of magnetic phase transitions in the alloy Fe0.5Mn1.1As with a C38 tetragonal crystal lattice. It shows that after various temperature/pressure treatment regimes (quenching of the sample from 800 °C under pressures of 30–60 kbar) no transition to the low-temperature phase is observed, as a result of which the ferrimagnetic phase extends to liquid-nitrogen temperatures. These results are analyzed on the basis of a qualitative model that takes into account the competition of ferromagnetic and antiferromagnetic interactions within and between nonequivalent crystallographic subsystems.

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Authors and Affiliations

  1. Donetsk Physicotechnical Institute, Ukrainian Academy of Sciences, 340114, Donetsk, Ukraine

    V. I. Val’kov & E. A. Khapalyuk

Authors
  1. V. I. Val’kov
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  2. E. A. Khapalyuk
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Fiz. Tverd. Tela (St. Petersburg) 39, 889–893 (May 1997)

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Val’kov, V.I., Khapalyuk, E.A. Features of magnetic phase transitions in iron-manganese arsenides of the type Fe a−x MnxAs (a≈1.6). Phys. Solid State 39, 791–795 (1997). https://doi.org/10.1134/1.1129971

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  • DOI: https://doi.org/10.1134/1.1129971

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