Premium
Influence of niobium impurity on spin density in metallic iron
Author(s) -
Błachowski A.,
Ruebenbauer K.,
Żukrowski J.
Publication year - 2005
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.200541086
Subject(s) - impurity , hyperfine structure , niobium , mössbauer spectroscopy , materials science , stoichiometry , atom (system on chip) , phase (matter) , metal , analytical chemistry (journal) , chemistry , crystallography , metallurgy , atomic physics , physics , organic chemistry , chromatography , computer science , embedded system
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 Fe 2 Nb 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)