Abstract
A generalized mean field theory is constructed for a system of rodlike Ising magnetic dipoles of a finite length a with configuration disorder. The theory is based on an analysis of the local magnetic field distribution function. It is shown that the magnetic state of such a system is determined by the dipole concentration n: the system is paramagnetic for na 3 ≲ 5×102, while ferromagnetic ordering exists for na 3 ≳ 5×102. The susceptibility of the system in the paramagnetic state is determined.
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Translated from Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 124, No. 3, 2003, pp. 656–663.
Original Russian Text Copyright © 2003 by Meilikhov, Farzetdinova.
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Meilikhov, E.Z., Farzetdinova, R.M. Magnetic properties of a random system of rodlike Ising dipoles. J. Exp. Theor. Phys. 97, 593–600 (2003). https://doi.org/10.1134/1.1618344
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DOI: https://doi.org/10.1134/1.1618344