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The strong enhancement of anisotropy produced in CuMn by the addition of impurities with strong spin-orbit coupling is explained by Dzyaloshinsky-Moriya interactions. Estimates of the anisotropy have been obtained by approximate analytic methods as well as Monte Carlo studies. Although D-M interactions seem to be dominant, we discuss some other sources of anisotropy, e.g., pseudo-dipole and crystal-field-like terms.
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Levy et al. (1982) studied this question.
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