Fc. Montenegro et al., PHASE-DIAGRAM OF THE RANDOM-FIELD ISING SYSTEM FE0.60ZN0.40F2 AT INTENSE FIELDS, Journal of magnetism and magnetic materials, 177, 1998, pp. 145-146
The critical and irreversibility phase boundaries of the d = 3 dilute
uniaxial antiferromagnet Fe0.60Zn0.40F2 have been determined under str
ong magnetic fields by magnetization measurements. Our data reveal tha
t the random-held-induced glassy phase, previously observed in the upp
er part of the (H, T) phase diagram for highly diluted samples (Fe con
centration x congruent to 0.3), is extensive to higher values of x. (C
) 1998 Elsevier Science B.V. All rights reserved.