Magnetic viscosity of L10 structured Mn-Ga and Mn-Al alloys
2017
Abstract The magnetic viscosity, S , of Mn-Ga and Mn-Al alloys with the L1 0 type crystal structure has been measured at temperatures in the range 2–300 K. The values of the fluctuation field, S v , and the coercive field, H c , of the two types of materials are comparable to each other. The observed dependence of S v on the applied field, H , is not in accordance with the theory of magnetic viscosity of particulate recording media. The relationship between H c and S v , the latter measured at H = − H c , fits the Barbier relationship, S v ∼ H c α , rather well.
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