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This article is cited in 108 scientific papers (total in 108 papers)
REVIEWS OF TOPICAL PROBLEMS
Phase transitions in two-dimensional systems with continuous degeneracy
S. E. Korshunov L. D. Landau Institute for Theoretical Physics, Russian Academy of Sciences
Abstract:
We discuss the nature and sequence of phase transitions in two-dimensional systems with continuous degeneracy, in which other factors must be taken into account in addition to the interaction of point-like topological excitations, namely, the existence of an additional discrete degeneracy (which leads to the possibility of domain wall formation), the removal of accidental degeneracy by fluctuations, the formation of solitons, and the presence of a random potential acting on vortices. Formally, we discuss various modifications of the two-dimensional XY model, while physical objects that can be described by such models are various arrays of superconducting junctions and noncollinear planar antiferromagnets.
Received: July 18, 2005
Citation:
S. E. Korshunov, “Phase transitions in two-dimensional systems with continuous degeneracy”, UFN, 176:3 (2006), 233–274; Phys. Usp., 49:3 (2006), 225–262
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https://www.mathnet.ru/eng/ufn286 https://www.mathnet.ru/eng/ufn/v176/i3/p233
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Abstract page: | 557 | Full-text PDF : | 151 | References: | 56 | First page: | 1 |
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