Disordered phase of the two-dimensional J1–J2 Heisenberg antiferromagnet with S=1 on a square lattice
Source abstract
Abstract
Abstract We study the disordered phase of the J1–J2 frustrated Heisenberg antiferromagnet with spin S=1 on a square lattice using a SU(3) Schwinger boson representation. In the approximation of Bose condensation and in a mean-field treatment of the four-operator terms, we calculate the gap as a function of J1/J2, and the quadrupole static structure factor at zero temperature. Our results indicate the existence of a nematic state in the paramagnetic phase.
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Research context
OpenAlex topics: Physics of Superconductivity and Magnetism · Cold Atom Physics and Bose-Einstein Condensates · Theoretical and Computational Physics
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References (29)
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