Dynamics of the diluted Ising antiferromagnet Fe0.42Zn0.58F2 at strong fields

Citation
A. Rosales-rivera et al., Dynamics of the diluted Ising antiferromagnet Fe0.42Zn0.58F2 at strong fields, J MAGN MAGN, 226, 2001, pp. 1309-1311
Citations number
14
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853 → ACNP
Volume
226
Year of publication
2001
Part
2
Pages
1309 - 1311
Database
ISI
SICI code
0304-8853(200105)226:<1309:DOTDIA>2.0.ZU;2-T
Abstract
The random-field Ising model (RFIM) system Fe0.42Zn0.58F2 is studied by mag netization and AC susceptibility measurements, under finite DC applied fiel ds (H). For weak random fields (corresponding to H < 20 KOe), the phase tra nsition (PT) at T-c (H) is accompanied by the critical slowing down inheren t to the random field problem. For higher H, the PT is destroyed and a glas sy dynamics dominates the magnetic behavior. (C) 2001 Elsevier Science BY. All rights reserved.