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Article
Random-Field Critical Behavior and the Ginzburg Criterion
Physical Review B
(1985)
Abstract
The Ginzburg criterion for crossover from classical to nonclassical critical behavior is derived in the presence of random fields. Experiments on dilute antiferromagnets in a field are examined, and the possibility of such a crossover is investigated. We also point out that the (necessarily) symmetric logarithmic divergence observed in birefringence measurements can be accompanied by a discontinuity, and a fitting form which allows for this and other corrections to scaling is proposed.
Disciplines
Publication Date
March 1, 1985
Citation Information
Miron Kaufman and Mehran Kardar. "Random-Field Critical Behavior and the Ginzburg Criterion" Physical Review B Vol. 31 Iss. 5 (1985) Available at: http://works.bepress.com/miron_kaufman/45/