| Issue |
J. Phys. Colloques
Volume 49, Number C8, Décembre 1988
Proceedings of the International Conference on Magnetism
|
|
|---|---|---|
| Page(s) | C8-1377 - C8-1378 | |
| DOI | https://doi.org/10.1051/jphyscol:19888631 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1377-C8-1378
DOI: 10.1051/jphyscol:19888631
1 Institut Laue-Langevin, 156X, F-38042 Grenoble Cedex, France
2 Central Research Institute for Physics, P.O. Box 49, H-1525 Budapest, Hungary
3 Department of Physics, University of Jyväskylä, SF-40100 Jyväskylä, Finland
J. Phys. Colloques 49 (1988) C8-1377-C8-1378
DOI: 10.1051/jphyscol:19888631
QUANTUM SPIN CHAINS WITH COMPOSITE SPIN
J. Sólyom1, 2 et J. Timonen31 Institut Laue-Langevin, 156X, F-38042 Grenoble Cedex, France
2 Central Research Institute for Physics, P.O. Box 49, H-1525 Budapest, Hungary
3 Department of Physics, University of Jyväskylä, SF-40100 Jyväskylä, Finland
Abstract
The ground state of quantum spin chains with two spin-1/2 operators per site is determined from finite chain calculations and compared to predictions from the continuum limit. As particular cases, results for the spin-1 Heisenberg chain, the spin-1 model with bilinear and biquadratic exchange and the extended Hubbard model are analysed.