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Reversal field vs for different elements with , , , and . (a) , ; (b) , for the composite element, and , (where is the height) for the homogeneous element. The shadowed areas represent the conditions under which reversal occurs.
Schematic representation of the magnetization time evolution the incoherent mode: . (a) for moderate soft-section thicknesses, a domain wall is formed in the soft section assisting reversal; (b) for sufficiently large soft section thicknesses, the domain wall stops at the top part of the soft section with no reversal.
Reversal field vs for different for composite and homogeneous elements. (a) , , ; (b) , for the homogeneous element, and , , for the composite element.
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