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Intrinsic Coercive force, Hci: Measured in Oersteds in the cgs system, this is a measure of the material’s inherent ability to resist demagnetization.
It is the demagnetization force corresponding to zero intrinsic induction in the magnetic material after saturation. Practical consequences of high Hci values are seen in greater temperature stability for a given class of material, and greater stability in dynamic operating conditions.