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Cubic anisotropy created by defects of "random local anisotropy" type, and phase diagram of the O(n) model
A. A. Berzin, A. I. Morosov, A. S. Sigov
The expression for the cubic-type-anisotropy constant created by defects of "random local anisotropy" type is derived. It is shown that the Imry-Ma theorem stating that in space di…
Phase diagram for the O(n) model with defects of "random local field" type and verity of the Imry-Ma theorem
A. A. Berzin, A. I. Morosov, A. S. Sigov
It is shown that the Imry-Ma theorem stating that in space dimensions d<4 the introduction of an arbitrarily small concentration of defects of the "random local field" type in a sy…
Imry-Ma disordered state induced by defects of "random local anisotropy" type in the system with O(n) symmetry
A. A. Berzin, A. I. Morosov, A. S. Sigov
For the system with the n-component order parameter (O(n)-model), conditions for initiation of the Imry-Ma disordered state resulting from the influence of defects of the "random l…
A Mechanism of Long-Range Order Induced by Random Local Fields: Effective Anisotropy Created by Defects
A. A. Berzin, A. I. Morosov, A. S. Sigov
We propose a microscopic mechanism of the long-range order in two-dimensional space induced by random local fields of crystal defects. The anisotropic distribution of defect-induce…
The anisotropy induced by defects of "random local field" type in O(n) models and suppression of the Imry-Ma inhomogeneous state
A. A. Berzin, A. I. Morosov, A. S. Sigov
We demonstrate that in the system with anisotropic distribution of the defect-induced random local field directions in the n-dimensional space of vector order parameter with the O(…