| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|
|---|---|---|
| Page(s) | C8-1379 - C8-1380 | |
| DOI | https://doi.org/10.1051/jphyscol:19888632 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1379-C8-1380
DOI: 10.1051/jphyscol:19888632
1 Facultad de Física, Universidad Católica de Chile, Casilla 6177, Santiago 22, Chile
2 Instituto de Física "Gleb Wataghin", Universidade Estadual de Campinas, Caixa Postal 6165, 13.081 Campinas, São Paulo, Brazil
J. Phys. Colloques 49 (1988) C8-1379-C8-1380
DOI: 10.1051/jphyscol:19888632
NEW SOLUTIONS FOR THE ANISOTROPIC ANTIFERROMAGNETIC CHAIN
M. Lagos1 et G. G. Cabrera21 Facultad de Física, Universidad Católica de Chile, Casilla 6177, Santiago 22, Chile
2 Instituto de Física "Gleb Wataghin", Universidade Estadual de Campinas, Caixa Postal 6165, 13.081 Campinas, São Paulo, Brazil
Abstract
Coherent states are proposed as solutions for the antiferromagnetic Heisenberg Hamiltonian in the quasi-Ising asymptotic regime of high anisotropy. Since our solutions are given in closed analytical form, a deep insight concerning the structure of the ground state and its excitations is obtained. Our calculation is in excellent agreement with numerical simulations.