Premium
Reaction Field Approximation for Heisenberg Paramagnets and the Magnetic Specific Heat
Author(s) -
Scherer C.,
Aveline I.
Publication year - 1976
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.2220750208
Subject(s) - paramagnetism , specific heat , magnetic field , condensed matter physics , physics , magnetic susceptibility , field dependence , heisenberg model , field (mathematics) , quantum mechanics , mathematics , ferromagnetism , pure mathematics
The concept of “reaction field” introduced by Onsager is applied to the case of a Heisenberg system in the paramagnetic phase. The procedure to obtain the static q ‐dependent susceptibility and pair correlation functions is reviewed and extended to calculate the magnetic specific heat. The result of this calculation is compared with experiment.