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. 2016 Oct 20;6:35471. doi: 10.1038/srep35471

Figure 3. Exchange magnetic coupling effect.

Figure 3

(a) Magnetization versus applied magnetic field loops recorded after field cooling the samples along opposite directions. (b) Zoom of the (a) panel. In a and b, lines though data points correspond to the fitting of the expression M = M0·tanh[(H − HC)/δH] + χPM·H. (c) HEB extracted from 4 different hysteresis loops recorded upon successive field cools along opposite directions is plotted.