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Open AccessArticle

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

1
Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, 01187 Dresden, Germany
2
School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China
3
Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
4
Present address Departamento de Química, Facultad de Ciencias, Universidad Católica del Norte, Casa Central. Angamos 0610, 1240000 Antofagasta, Chile
*
Author to whom correspondence should be addressed.
Materials 2019, 12(12), 1993; https://doi.org/10.3390/ma12121993
Received: 31 May 2019 / Revised: 17 June 2019 / Accepted: 19 June 2019 / Published: 21 June 2019
(This article belongs to the Section Materials Chemistry)
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. View Full-Text
Keywords: iron nitride; manganese; ferromagnet; high-pressure synthesis iron nitride; manganese; ferromagnet; high-pressure synthesis
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MDPI and ACS Style

Schwarz, U.; Guo, K.; Clark, W.P.; Burkhardt, U.; Bobnar, M.; Castillo, R.; Akselrud, L.; Niewa, R. Ferromagnetic ε-Fe2MnN: High-Pressure Synthesis, Hardness and Magnetic Properties. Materials 2019, 12, 1993. https://doi.org/10.3390/ma12121993

AMA Style

Schwarz U, Guo K, Clark WP, Burkhardt U, Bobnar M, Castillo R, Akselrud L, Niewa R. Ferromagnetic ε-Fe2MnN: High-Pressure Synthesis, Hardness and Magnetic Properties. Materials. 2019; 12(12):1993. https://doi.org/10.3390/ma12121993

Chicago/Turabian Style

Schwarz, Ulrich; Guo, Kai; Clark, William P.; Burkhardt, Ulrich; Bobnar, Matej; Castillo, Rodrigo; Akselrud, Lev; Niewa, Rainer. 2019. "Ferromagnetic ε-Fe2MnN: High-Pressure Synthesis, Hardness and Magnetic Properties" Materials 12, no. 12: 1993. https://doi.org/10.3390/ma12121993

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