Question: The energy (per unit volume) required to magnetize a ferromagnetic material to saturation (Es) is defined by the following equation: That is, Es is equal

The energy (per unit volume) required to magnetize a ferromagnetic material to saturation (Es) is defined by the following equation:

That is, Es is equal to the product of ?0 and the area under an M versus H curve, to the point of saturation referenced to the ordinate (or M) axis'for example, in Figure the area between the vertical axis and the magnetization curve to Ms. Estimate Es values (in J/m3) for single-crystal nickel in [100], [110], and [111] directions.

M, E, = HoH dM J0 !!

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