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

MPS-Authors
/persons/resource/persons126841

Schwarz,  Ulrich
Ulrich Schwarz, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126634

Guo,  Kai
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126556

Burkhardt,  Ulrich
Ulrich Burkhardt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons146769

Bobnar,  Matej
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons138578

Castillo,  Rodrigo
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

/persons/resource/persons126510

Akselrud,  Lev
Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Schwarz, U., Guo, K., Clark, W. P., Burkhardt, U., Bobnar, M., Castillo, R., et al. (2019). Ferromagnetic ε-Fe2MnN: High-Pressure Synthesis, Hardness and Magnetic Properties. Materials, 12(12): 1993, pp. 1-10. doi:10.3390/ma12121993.


Cite as: https://hdl.handle.net/21.11116/0000-0004-77C6-7
Abstract
The iron manganese nitride Fe2MnN was obtained by high-pressure-high-temperature synthesis from zeta-Fe2N and elemental Mn at 15(2) GPa and 1573(200) K. The phase crystallizes isostructural to binary epsilon-Fe3N. In comparison to the corresponding binary iron nitride, the microhardness of epsilon-Fe2MnN is reduced to 6.2(2) GPa. Above about 800 K the ternary compound decomposes exothermally under loss of nitrogen. epsilon-Fe2MnN is ferromagnetic with a Curie temperature of roughly 402 K.