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We report on the enhancement of the exchange field, Hex , in IrMn/CoFe systems as a result of the application of field annealing procedures. The exchange field is enhanced up to a 37% on application of a 2 Tesla field for 90 minutes at 225degC. This setting process improves the magnitude of HEX without significant changes in the coercivity, HC, or the median blocking temperature. The sample with largest...
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