Theory of the frustration effect. II. Ising spins on a square lattice
- 28 September 1977
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 10 (18), L537-L542
- https://doi.org/10.1088/0022-3719/10/18/008
Abstract
For pt.I see Commun. Phys., vol.2, p.115 (1977). Presents numerical results for the ground-state properties of the simplest system showing the frustration effect, Ising spins on a square lattice with a variable concentration x of antiferromagnetic interactions. Ferromagnetism disappears at a concentration xc approximately 0.09. The ground-state energy and degeneracy have markedly different behaviours below and above xc. The authors compare the results with other calculations and stress the advantages of the frustration approach.Keywords
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