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Molecular field theory analysis of Gd 2 Co 2 Al and Gd 2 Co 2 Ga compounds
Author(s) -
Kervan S.
Publication year - 2003
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.200301819
Subject(s) - curie temperature , field (mathematics) , magnetization , curie , materials science , analytical chemistry (journal) , chemistry , condensed matter physics , thermodynamics , magnetic field , physics , ferromagnetism , mathematics , chromatography , quantum mechanics , pure mathematics
The molecular field theory based on two‐sublattice model was employed to analyse the temperature dependence of the magnetization of Gd 2 Co 2 Al and Gd 2 Co 2 Ga compounds. The molecular field coefficients n CoCo , n GdCo and n GdGd were obtained by a numerical fitting process. The theoretically calculated Curie temperatures were found to agree well with the experimental results. The exchange fields H Co ( T ) and H Gd ( T ) were presented.
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