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Ferromagnetic ε-Fe2MnN: High-Pressure Synthesis, Hardness and Magnetic Properties.

Ulrich SchwarzKai GuoWilliam P ClarkUlrich BurkhardtMatej BobnarRodrigo CastilloLev AkselrudRainer Niewa
Published in: Materials (Basel, Switzerland) (2019)
The iron manganese nitride Fe2MnN was obtained by high-pressure-high-temperature synthesis from ζ-Fe2N and elemental Mn at 15(2) GPa and 1573(200) K. The phase crystallizes isostructural to binary ε-Fe3N. In comparison to the corresponding binary iron nitride, the microhardness of ε-Fe2MnN is reduced to 6.2(2) GPa. Above about 800 K the ternary compound decomposes exothermally under loss of nitrogen. ε-Fe2MnN is ferromagnetic with a Curie temperature of roughly 402 K.
Keyphrases
  • visible light
  • metal organic framework
  • room temperature
  • high temperature
  • quantum dots
  • reduced graphene oxide
  • high resolution
  • iron deficiency
  • transition metal
  • tandem mass spectrometry