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Ferromagnetic Curie Temperatures of Iron Solid Solutions with Germanium, Silicon, Molybdenum, and Manganese
Author(s) -
Arajs S.
Publication year - 1965
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.19650110110
Subject(s) - curie temperature , germanium , manganese , molybdenum , curie , silicon , ferromagnetism , materials science , paramagnetism , condensed matter physics , magnetic moment , curie constant , curie's law , metallurgy , curie–weiss law , physics
Ferromagnetic Curie temperatures of iron‐rich solid solutions with germanium, silicon, molybdenum, and manganese have been determined as a function of solute concentrations. Addition of germanium to iron causes a gradual increase in the Curie temperature, reaching a maximum value of 1046.8 °K at about 1.5 at.% germanium, followed by a gradual decrease. This observation is consistent with the expectations from our previous paramagnetic susceptibility studies. Silicon, molybdenum, and manganese decrease the ferromagnetic Curie point of iron nonlinearly, as a function of solute concentration. The experimental results are briefly compared with the existing theories based on localized moment models. None of them are capable of explaining the observations.