Magnetic hardening in gradually devitrified Co-based glassy alloys

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作者：
Institute of Physics, Polish Academy of Science, Al.Lotników 32/46, 02-668 Warszawa, Poland [1 ]
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来源：
J Magn Magn Mater | / 151-153期
关键词：
Annealing - Cobalt alloys - Coercive force - Crystal growth - Crystal structure - Hardening - Magnetoresistance - Metallic glass - Nanostructured materials;
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摘要：
It is shown that gradual devitrification of non-magnetostrictive Co-based metallic glass leads to a giant, five orders of magnitude, increase of its coercivity. This magnetic hardening is due to the pinning of domain walls by growing fine crystallites much smaller than the domain wall width. The number and size of which increase with an increase of the annealing temperature.
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