DISCRETE SPIN CUBIC MODEL ON A FRACTAL LATTICE - THE GROUND-STATE PHASE-DIAGRAM

Citation
Z. Borjan et al., DISCRETE SPIN CUBIC MODEL ON A FRACTAL LATTICE - THE GROUND-STATE PHASE-DIAGRAM, Physica. A, 222(1-4), 1995, pp. 1-9
Citations number
16
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
ISSN journal
0378-4371
Volume
222
Issue
1-4
Year of publication
1995
Pages
1 - 9
Database
ISI
SICI code
0378-4371(1995)222:1-4<1:DSCMOA>2.0.ZU;2-M
Abstract
We study the ground state properties of the discrete spin cubic model situated on the Sierpinski gasket fractal lattice. The relevant model Hamiltonian contains exchange and quadrupolar interaction terms, assoc iated with the parameters J(1) and J(2), respectively. We have found t hat the model under study has a very rich ground state diagram in the (J(1),J(2))-plane, with one ordered (ferromagnetic) state and three re gions of different frustrated states.