Influence of niobium impurity on spin density in metallic iron

Random alloys of Nb in α‐Fe with the Nb concentration up to about 5 at.% were investigated by means of Mössbauer spectroscopy at room temperature vs. Nb concentration. A solid solution saturates at about 2.3 at.% of Nb. Non‐stoichiometric Fe2Nb phase rich in Fe precipitates at higher Nb concentratio...

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Veröffentlicht in:	Physica Status Solidi (b) 2005-12, Vol.242 (15), p.3201-3208
Hauptverfasser:	Błachowski, A., Ruebenbauer, K., Żukrowski, J.
Format:	Artikel
Sprache:	eng
Schlagworte:	75.50.Bb 76.80.+y Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Magnetic resonances and relaxations in condensed matter, mössbauer effect Mössbauer effect other γ-ray spectroscopy Physics
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Zusammenfassung:	Random alloys of Nb in α‐Fe with the Nb concentration up to about 5 at.% were investigated by means of Mössbauer spectroscopy at room temperature vs. Nb concentration. A solid solution saturates at about 2.3 at.% of Nb. Non‐stoichiometric Fe2Nb phase rich in Fe precipitates at higher Nb concentrations leaving α‐Fe phase with about 1.6 at.% of Nb. The spin density of the iron atom is influenced in the α phase by the Nb atoms residing as nearest neighbours or second nearest neighbours. More distant impurities have no effect on the hyperfine parameters of Fe. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
ISSN:	0370-1972 1521-3951
DOI:	10.1002/pssb.200541086