In situ  — High Temperature Mössbauer Spectroscopy of Iron Nitrides and Nitridoferrates | Zendy

Ksenofontov V. | Zendy; Reiman S. | Zendy; Waldeck M. | Zendy; Niewa R. | Zendy; Kniep R. | Zendy; Gütlich P. | Zendy

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In situ — High Temperature Mössbauer Spectroscopy of Iron Nitrides and Nitridoferrates

Author(s) -

Ksenofontov V.,

Reiman S.,

Waldeck M.,

Niewa R.,

Kniep R.,

Gütlich P.

Publication year - 2003

Publication title -

zeitschrift für anorganische und allgemeine chemie

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.354

H-Index - 66

eISSN - 1521-3749

pISSN - 0044-2313

DOI - 10.1002/zaac.200300135

Subject(s) - mössbauer spectroscopy , thermal decomposition , nitride , stoichiometry , decomposition , thermal stability , materials science , analytical chemistry (journal) , spectroscopy , in situ , chemistry , crystallography , nanotechnology , physics , organic chemistry , layer (electronics) , chromatography , quantum mechanics

The stoichiometric iron nitrides γ′‐Fe 4 N, ε‐Fe 3 N and ζ‐Fe 2 N were characterized by Mössbauer spectroscopy. The thermal decomposition of ε‐Fe 3 N was studied in‐situ by means of a specially developed Mössbauer furnace. We found ε‐Fe 3 N to γ′‐Fe 4 N and ε‐Fe 3 N x (x ≥ 1.3) as decomposition products and determined the border of γ′/ε transformation at T ≅ 930 K. Mössbauer spectroscopy was applied to study in‐situ the thermal decomposition of the nitridometalate Li 3 [Fe III N 2 ] and the formation of Li 2 [(Li 1‐ x Fe I x )N], the compound with the largest local magnetic field ever observed in an iron containing material. The kinetics of formation and the stability of Li 2 [(Li 1‐ x Fe I x )N] was of particular interest in the present study.

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