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JOURNALS // Teoreticheskaya i Matematicheskaya Fizika // Archive

TMF, 1996 Volume 109, Number 3, Pages 427–440 (Mi tmf1239)

This article is cited in 3 papers

Integral equation in the theory of phase transitions in the system of magnetic rods

L. D. Èskin

Kazan State University

Abstract: The nonlinear integral equation for the orientational distribution function (ODF), describing anisotropic nematic ordering in a system of magnetic rods, is investigated. The classification of bifurcation points is presented and their asymptotics are found for highly elongated rods with the small and large magnetic moments. An algorithm for finding the ODF, near to isotropic, is developed in the neighborhood of bifurcation points. In the limiting cases of small and large magnetic moments of rods the found solutions (ODF) have the left direction of bifurcation. However, in the intermediate region of values of the magnetic moments the solutions having the right direction of bifurcation exist along with solutions having the left direction of bifurcation.

Received: 07.12.1995
Revised: 15.07.1996

DOI: 10.4213/tmf1239


 English version:
Theoretical and Mathematical Physics, 1996, 109:3, 1578–1589

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© Steklov Math. Inst. of RAS, 2026