Two-dimensional quantum antiferromagnet in a strong magnetic field |
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Authors: | S. Gluzman |
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Affiliation: | 1. Department of Chemical Physics, Weizmann Institute of Science, 76100, Rehovot, Israel
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Abstract: | The behaviour of the two-dimensional quantum antiferromagnet of arbitrary spin in a strong transversal magnetic field on a square lattice is studied in terms of the equivalent Bose gas problem. The existence of phase transition from the state characterized by “quasi-long-range” magnetic order to the disordered ferromagnetic state is demonstrated. The expressions for correlation functions, thermodynamical and magnetic characteristics are derived. |
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