Antiferromagnetic model with Néel states as ground states
- 1 March 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 29 (5) , 2741-2744
- https://doi.org/10.1103/physrevb.29.2741
Abstract
We discuss in one as well as three dimensions an antiferromagnetic model with Néel states as ground states. Long-range order exists for this Hamiltonian. Finite-temperature properties of this Hamiltonian can be computed through the usual Green-function method and the results obtained are identical with those of the isotropic Heisenberg Hamiltonian through a similar method. The reason for this identity and its implication in analysis of experimental data are discussed.Keywords
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