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State diagram of the Zn3As2–MnAs system

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Abstract

The Zn3As2–MnAs system was studied by X-ray powder diffraction, differential thermal, and microstructural analyses. This system is of the eutectic type with the eutectic coordinates (30 wt % (50 mol %) Zn3As2, 70 wt % (50 mol %) MnAs, T melt = 815°C). The MnAs solubility boundary on the side of Zn3As2 is 10 wt %. Zn3As2 alloys containing more than 10 wt % MnAs are ferromagnetic with T c ~ 320 K. Their magnetization increases with increasing MnAs content.

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Correspondence to S. F. Marenkin.

Additional information

Original Russian Text © S.F. Marenkin, I.V. Fedorchenko, V.M. Trukhan, S.V. Trukhanov, T.V. Shoukavaya, P.N. Vasil’ev, A.L. Zhaludkevich, 2015, published in Zhurnal Neorganicheskoi Khimii, 2015, Vol. 60, No. 12, pp. 1723–1727.

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Marenkin, S.F., Fedorchenko, I.V., Trukhan, V.M. et al. State diagram of the Zn3As2–MnAs system. Russ. J. Inorg. Chem. 60, 1578–1582 (2015). https://doi.org/10.1134/S0036023615120189

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Keywords

  • Differential Thermal Analysis
  • Microstructural Analysis
  • State Diagram
  • Topaz
  • Eutectic Type