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Phase transitions in the two-dimensional single-ion anisotropic Heisenberg model with long-range interactions

โœ Scribed by Moura, A.R.

Book ID
125798466
Publisher
Elsevier Science
Year
2014
Tongue
English
Weight
411 KB
Volume
369
Category
Article
ISSN
0304-8853

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Quantum phase transition in the two-dime
Quantum phase transition in the two-dimensional XY model with single-ion anisotropy
โœ A.S.T. Pires; M.E. Gouvea ๐Ÿ“‚ Article ๐Ÿ“… 2009 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 449 KB

In this paper we study the quantum phase transition and low temperature behavior in a square lattice quantum two-dimensional XY model with single-ion anisotropy and spin S = 1. Starting with the Villain representation, a Landau-Ginzburg expression is written. The large D phase is studied using the