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Magnetic Properties of Dilute Alloys: Equations for Magnetization and Its Structural Fluctuations
Author(s) -
Vakarchuk I. O.,
Tkachuk V. M.,
Kuliy T. V.
Publication year - 1998
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/(sici)1521-3951(199807)208:1<167::aid-pssb167>3.0.co;2-f
Subject(s) - magnetization , condensed matter physics , ferromagnetism , impurity , quadratic equation , physics , spontaneous magnetization , materials science , quantum mechanics , magnetic field , mathematics , geometry
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 are derived within the configurationally averaged two‐time temperature Green's function method. This system of equations is analyzed at low concentration of nonmagnetic impurities. Mean relative quadratic fluctuations of magnetization are revealed to be proportional to the square of concentration of impurities.