Numerical signs for a transition in the two-dimensional random field Isingmodel at T=0

Authors
Frontera, C Vives, E
Citation
C. Frontera et E. Vives, Numerical signs for a transition in the two-dimensional random field Isingmodel at T=0, PHYS REV E, 59(2), 1999, pp. R1295-R1298
Citations number
17
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW E
ISSN journal
1063651X → ACNP
Volume
59
Issue
2
Year of publication
1999
Part
A
Pages
R1295 - R1298
Database
ISI
SICI code
1063-651X(199902)59:2<R1295:NSFATI>2.0.ZU;2-2
Abstract
Intensive numerical studies of exact ground states of the two-dimensional f erromagnetic random field Ising model at T=0, with a Gaussian distribution of fields, are presented. Standard finite size scaling analysis of the data suggests the existence of a transition at sigma(c)= 0.64+/-0.08. Results a re compared with existing theories and with the study of metastable avalanc hes in the same model. [S1063-651X(99)50602-8].