Spin-glass attractor on tridimensional hierarchical lattices in the presence of an external magnetic field.
Phys Rev E Stat Nonlin Soft Matter Phys
; 79(5 Pt 1): 051122, 2009 May.
Article
em En
| MEDLINE
| ID: mdl-19518431
ABSTRACT
A nearest-neighbor-interaction Ising spin glass, in the presence of an external magnetic field, is studied on different hierarchical lattices that approach the cubic lattice. The magnetic field is considered as uniform or random (following either a bimodal or a Gaussian probability distribution). In all cases, a spin-glass attractor is found, in the plane magnetic field versus temperature, associated with a low-temperature phase. The physical consequences of this attractor are discussed, in view of the present scenario of the spin-glass problem.
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Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article