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On the Magnetic Structure of the Intermetallic Compounds Gd 2 Al And Gd 2 Au
Author(s) -
Brédimas V.,
Papatriantafyllou K.,
GamariSeale H.
Publication year - 1983
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.2221170211
Subject(s) - intermetallic , antiferromagnetism , paramagnetism , ferromagnetism , ground state , condensed matter physics , materials science , diamagnetism , bravais lattice , crystallography , spin (aerodynamics) , chemistry , magnetic field , physics , crystal structure , atomic physics , thermodynamics , metallurgy , alloy , quantum mechanics
Using the molecular field model to non Bravais lattices the following results are obtained: The sub‐lattices of Gd for the compound Gd 2 Au in the first ordered state below the paramagnetic state order ferromagnetically while in the Gd 2 Al compound they possess a helicoidal spin structure. In the ground state, Gd 2 Au is ferromagnetic and Gd 2 Al is antiferromagnetic when a quite large number of neighbours is included in the calculation and for a propagation vector k = 0 (ferromagnetic sublattices).