FUNCTIONAL INTEGRATION IN THE THEORY
OF FERROMAGNETIC SURSTITUTIONAL ALLOYS
The method of functional integration by hose-fields is applied tor the calculation of thermodynamic properties of magnetic substitutional alloys. Different possibilities to extract self-consistent field approximation are studied in detail. Consistent procedure for configurational averaging of physically observable quantities is presented. The free energy of alloy is calculated as an example. The equation for calculation of magnetion and "paramagnetic-ferromagnetic" phase transition is obtained.
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