Anisotropy induced by impurities of “random local field” type in O(n) models and suppression of the Imry–Ma inhomogeneous state
- Authors: Berzin A.A.1, Morosov A.I.2, Sigov A.S.1
-
Affiliations:
- Moscow Technological University (MIREA)
- Moscow Institute of Physics and Technology (State University)
- Issue: Vol 58, No 8 (2016)
- Pages: 1671-1674
- Section: Phase Transitions
- URL: https://bakhtiniada.ru/1063-7834/article/view/198494
- DOI: https://doi.org/10.1134/S1063783416080059
- ID: 198494
Cite item
Abstract
It is shown that in a system with anisotropic distribution of the impurity-induced random local field directions in the n-dimensional space of a vector order parameter with the O(n) symmetry, the impurityinduced effective anisotropy arises for the space dimensionality 2 < d < 4. If the anisotropy constant exceeds the threshold value, then an inhomogeneous state predicted by Imry and Ma becomes energetically unfavorable, and the system goes back to a state with the long-range order.
About the authors
A. A. Berzin
Moscow Technological University (MIREA)
Email: mor-alexandr@yandex.ru
Russian Federation, Vernadsky pr. 78, Moscow, 119454
A. I. Morosov
Moscow Institute of Physics and Technology (State University)
Author for correspondence.
Email: mor-alexandr@yandex.ru
Russian Federation, Institutskiy per. 9, Dolgoprudnyi, Moscow oblast, 141700
A. S. Sigov
Moscow Technological University (MIREA)
Email: mor-alexandr@yandex.ru
Russian Federation, Vernadsky pr. 78, Moscow, 119454
Supplementary files
