Figure 5.

Illustration of the FC and ZFC hysteresis loops. (a) Hysteresis loops of the Fe3O4/FeO particles fabricated at 177 mJ/pulse.cm2. FC means that the sample is cooled from 300 to 5 K in the 50 kOe field. (b) The magnification around origin of hysteresis loops of the Fe3O4/FeO particles fabricated at 177 mJ/pulse cm2.

Swiatkowska-Warkocka et al. Nanoscale Research Letters 2011 6:226   doi:10.1186/1556-276X-6-226
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