Magnetic Properties of Dilute Alloys: Equations for Magnetization and its Structural Fluctuations
I. Vakarchuk, V. Tkachuk, T. Kuliy
Abstract
The dilute Heisenberg ferromagnet is studied taking into account fluctuations of magnetization caused by disorder. A self-consistent system of equations for magnetization and its mean quadratic fluctuations is derived within the configurationally averaged two-time temperature Green's function method. This system of equations is analised at low concentration of non-magnetic impurities. Mean relative quadratic fluctuations of magnetization are revealed to be proportional to the square of concentration of impurities.
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