The quantum Heisenberg antiferromagnet on the square lattice

Details The quantum Heisenberg antiferromagnet on the square lattice The quantum Heisenberg antiferromagnet on the square lattice

1998-12-02

arxiv.org/abs/cond-mat/9812041v1

Physics

Condensed Matter

Statistical Mechanics

Proceedings of the Conference "Path Integrals from peV to TeV - 50 Years from Feynman's paper" (Florence, August 1998) -- 2 pa

Scientific paper

10.1063/1.369088

The pure-quantum self-consistent harmonic approximation, a semiclassical method based on the path-integral formulation of quantum statistical mechanics, is applied to the study of the thermodynamic behaviour of the quantum Heisenberg antiferromagnet on the square lattice (QHAF). Results for various properties are obtained for different values of the spin and successfully compared with experimental data.

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