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From ferromagnetism to spin glass magnetic structure: Mössbauer study of the ordered Fe 0.75– x Al 0.25+ x alloys ( x = 0, 0.025, and 0.05)
Author(s) -
Delyagin N. N.,
Erzinkyan A. L.,
Parfenova V. P.,
Rozantsev I. N.
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.200510009
Subject(s) - ferromagnetism , spin glass , condensed matter physics , mössbauer effect , materials science , spin (aerodynamics) , short range order , range (aeronautics) , mössbauer spectroscopy , crystallography , chemistry , physics , thermodynamics , composite material
Short‐range order, due to the strong interatomic Al–Fe interaction, is the key factor governing the unexpected quick change of the magnetic properties of Fe 0.75– x Al 0.25+ x alloys over a narrow range of Al concentration, x = 0.0–0.05. The sharp transition from ferromagnetism to spin‐glass magnetic structure is the result of the generation of a high (non‐statistical) concentration of Fe sites with a large number of Al nearest‐neighbors. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)