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Title:
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Systematic study of the temperature dependence of the saturation magnetization in Fe, Fe-Ni and Co-based amorphous alloys
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Author:
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Liniers Vazquez, Macarena; Flores, J.; Bermejo, F. J.; González-Miranda, J. M.; Vicent, J. L.; Tejada Palacios, Javier
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Other authors:
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Universitat de Barcelona |
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Abstract:
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Magnetization versus temperature in the temperature interval 2-200 K was measured for amorphous alloys of three different compositions: Fe 81.5B14.5Si4, Fe40Ni38 Mo4B18, and Co70Fe5Ni 2Mo3B5Si15. The measurements were performed by means of a SQUID (superconducting quantum interference device) magnetometer. The aim was to extract information about the different mechanisms contributing to thermal demagnetization. A powerful data analysis technique based on successive minimization procedures has demonstrated that Stoner excitations of the strong ferromagnetic type play a significant role in the Fe-Ni alloy studied. The Fe-rich and Co-rich alloys do not show a measurable contribution from single-particle excitations. |
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Publication date:
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2010-05-04 |
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Subject(s):
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Propietats magnètiques
Aliatges
Materials ferromagnètics
Substàncies amorfes
Magnetic properties
Alloys
Ferromagnetic materials
Amorphous substances |
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Rights:
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(c) IEEE, 1989
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Document type:
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Article |
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