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The role of the compensation temperature in thermomagnetic switching

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2 Author(s)
Hansen, P. ; Philips GmbH Forschungslab., Hamburg, West Germany ; Witter, K.

Amorphous rare-earth-transition-metal alloys with different compensation temperatures, Tcomp, exhibit pronounced differences in the temperature characteristics of the coercivity in the high-temperature range. This is of primary importance for the thermomagnetic switching process in which the domain radius, domain regularity, or domain jitter must be controlled. The influence of the coercivity profile on these parameters has been investigated for alloys with Tcomp>100 K. The radial dependences of the driving fields acting on the domain wall are calculated using experimental data for the saturation magnetization, uniaxial anisotropy, and coercivity

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Magnetics, IEEE Transactions on  (Volume:24 ,  Issue: 6 )