Rigorous Criterion for Reentrance in the Spin-1/2 Ising-Heisenberg Model on Diamond-Like Decorated Bethe Lattices
Abstract
The spin-1/2 Ising-Heisenberg model on diamond-like decorated Bethe lattices is exactly solved with the help of decoration-iteration transformation and exact recursion relations. It is shown that the model under investigation exhibits reentrant phase transitions whenever a sufficiently high coordination number of the underlying Bethe lattice is considered.
- Publication:
-
Acta Physica Polonica A
- Pub Date:
- November 2010
- DOI:
- 10.12693/APhysPolA.118.725
- arXiv:
- arXiv:1007.1873
- Bibcode:
- 2010AcPPA.118..725S
- Keywords:
-
- Condensed Matter - Statistical Mechanics;
- Mathematical Physics
- E-Print:
- 6 pages, 3 figures, presented at 14th Czech and Slovak Conference on Magnetism 6.-9. July 2010, Kosice, Slovakia