High‐Pressure NiAs‐Type Modification of FeN

The combination of laser‐heated diamond anvil cells and synchrotron Mössbauer source spectroscopy were used to investigate high‐temperature high‐pressure chemical reactions of iron and iron nitride Fe(2)N with nitrogen. At pressures between 10 and 45 GPa, significant magnetic hyperfine splitting ind...

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Detalles Bibliográficos
Autores principales: Clark, William P., Steinberg, Simon, Dronskowski, Richard, McCammon, Catherine, Kupenko, Ilya, Bykov, Maxim, Dubrovinsky, Leonid, Akselrud, Lev G., Schwarz, Ulrich, Niewa, Rainer
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2017
Materias:
Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5488211/
https://www.ncbi.nlm.nih.gov/pubmed/28517174
http://dx.doi.org/10.1002/anie.201702440
Descripción
Sumario:The combination of laser‐heated diamond anvil cells and synchrotron Mössbauer source spectroscopy were used to investigate high‐temperature high‐pressure chemical reactions of iron and iron nitride Fe(2)N with nitrogen. At pressures between 10 and 45 GPa, significant magnetic hyperfine splitting indicated compound formation after annealing at 1300 K. Subsequent in situ X‐ray diffraction reveals a new modification of FeN with NiAs‐type crystal structure, as also rationalized by first‐principles total‐energy and chemical‐bonding studies.

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