Hysteresis and relaxation of hard–soft nanocomposite samples
نویسندگان
چکیده
We present experimental results on the hysteresis and relaxation of Fe/Ba hexaferrite composite samples prepared by ball milling starting from precursor Fe and Ba hexaferrite particles. Our results show that, for maximum applied fields of up to 8 kOe, the measured loops show a shift of up to 85 Oe. The compositional dependence of that loop displacement presents two maxima ~at approximately x50.3 and x50.7) and a minimum at x50.5. These results are discussed in terms of the dipolar coupling between both phases. © 2000 American Institute of Physics. @S0021-8979~00!63708-8#
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