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Magnetic Properties of the Hexagonal Iron Nitride ϵ‐Fe 3.2 N
Author(s) -
Eickel K. H.,
Pitsch W.
Publication year - 1970
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19700390113
Subject(s) - magnetic moment , nitride , iron nitride , hexagonal crystal system , mössbauer spectroscopy , materials science , crystallography , analytical chemistry (journal) , chemistry , condensed matter physics , nanotechnology , physics , layer (electronics) , chromatography
The Mössbauer effect has been measured on powder samples of the h.c.p. iron nitride ϵ‐Fe 3.2 N at 295 °K. The measurements indicate, that there are two kinds of Fe‐atoms with different environments in this material. This is in accordance with previous X‐ray investigations by which it was found that in ϵ‐iron nitrides the N‐atoms are highly ordered in such a way that e.g. in ϵ‐Fe 3.2 N the Fe‐atoms have either one or two N‐atoms within their nearest neighbourhood. Furthermore the average magnetic moment of the Fe‐atoms in ϵ‐Fe 3.2 N has been measured to be 1.97 μ B . Using this value together with the Mössbauer data the magnetic moments of the Fe‐atoms are estimated. The moments obtained are 2.4 μ B and 1.9 μ B respectively. These values are interpreted by similar considerations by which the magnetic structure of the f.c.c. γ′‐iron nitride Fe 4 N has been explained previously in the literature.