Quantum phase transition in the two dimensional XY model with single ion and exchange anisotropies

A.S.T. Pires

Physica A: Statistical Mechanics and its Applications, 2015, vol. 437, issue C, 198-203

Abstract: I study the spin-one XY antiferromagnet with easy plane single ion and exchange anisotropies on the square lattice using the SU(3) Schwinger boson formalism. The phase diagram at zero temperature is obtained. The gap, in the disordered phase, as a function of temperature is presented.

Keywords: A. XY model; A. Antiferromagnet; D. Quantum phase transitions (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:437:y:2015:i:c:p:198-203

DOI: 10.1016/j.physa.2015.05.114

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