Random-exchange and random-field Ising model-like behaviors in Fe 0.48Zn0.52F2

Journal of Applied Physics

Volumn 83, Issue 11, 1998, Pages 6311-6313

  Raposo, E P ^a,b   Coutinho Filho, M D ^a  

^a FEDERAL UNIVERSITY OF PERNAMBUCO   (Brazil)

^b HARVARD UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0006733088     PISSN: 00218979     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.367595     Document Type: Article

References (24)

1. For recent reviews, see D. P. Belanger, in Experiments on the Random Field Ising Model, edited by A. P. Young (World Scientific, Singapore, 1997), and references therein.
2. See also, D. P. Belanger and A. P. Young, J. Magn. Magn. Mater. 100, 272 (1991);
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5. Phys. Rev. B 33, 7659 (1986), and references therein.
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11. E. P. Raposo and M. D. Coutinho-Filho (unpublished).
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19. Physica A 191, 203 (1992).
20. Although φ≈1.42 is the most generally accepted experimental value (see Ref. 1), some of the reported crossover exponents in different measurements are: φ=1.40±0.05 [A. R. King, V. Jaccarino, D. P. Belanger, and S. M. Rezende, Phys. Rev. B 32, 503 (1985)],
21. φ=1.42±0.03 [I. B. Ferreira, A. R. King, and V. Jaccarino, J. Appl. Phys. 69, 5246 (1991)],
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23. and φ=1.46±0.02 [M. Lederman, J. Hamman, and R. Orbach, J. Appl. Phys. 69, 5249 (1991)]. The equivalence (within error bars) between the values of φ measured from critical and equilibrium lines has been always probed.
24. E. P. Raposo and M. D. Coutinho-Filho, J. Appl. Phys. 81, 5279 (1997).