Thomas E. Karis, C. Mark Seymour, et al.
Rheologica Acta
Synchrotron magnetic x-ray scattering studies have been performed on the site-diluted antiferromagnet Mn0.5Zn0.5F2 in zero field and in a field of 0.36 T. No hysteresis was observed in either experiment nor was any broadening due to random fields observed at the 10-4 AÌŠ-1 level in the 0.36 T external field. The sublattice magnetization was measured and the effective exponents =0.33 ±0.02 and 0.210.07 were extracted for 0 and 0.36 T external fields, respectively. Order-parameter curves for both fields exhibit mean-field behavior for an extended region below TN consistent with expectations based on the Ginzburg criterion. An average over published experiments gives =0.34±0.01 in good agreement with theory, for the random-exchange Ising model. © 1988 The American Physical Society.
Thomas E. Karis, C. Mark Seymour, et al.
Rheologica Acta
R. Ghez, J.S. Lew
Journal of Crystal Growth
P. Alnot, D.J. Auerbach, et al.
Surface Science
Eloisa Bentivegna
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