Magnetocrystalline Anisotropy in Y(Co sub 0.85 Al sub 01.5 ) sub 2 With the C15 Cubic Laves Phase Structure

The temperature dependence of the first magnetocrystalline anisotropy constant K sub 1 has been deduced from the analysis of isothermal magetization curves I(H) for polycrystalline Y(Co sub 0.85 Al sub 0.15 ) sub 2 samples with the C15 cubic laves phase structure. The magnitude of K sub 1 is equal t...

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Bibliographic Details
Published in:Journal of physics. Condensed matter 1993-09, Vol.5 (37), p.7009-7012
Main Authors: Tovstolytkin, A I, Belous, N A, Zorin, I A, Lezhnenko, I V
Format: Article
Language:English
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Summary:The temperature dependence of the first magnetocrystalline anisotropy constant K sub 1 has been deduced from the analysis of isothermal magetization curves I(H) for polycrystalline Y(Co sub 0.85 Al sub 0.15 ) sub 2 samples with the C15 cubic laves phase structure. The magnitude of K sub 1 is equal to 7.6 x 10 exp 4 erg cm exp --3 at T = 7K and falls rapidly with increasing temperature. K sub 1 has a negative sign over the temperature range investigated from 7-20K, i.e. below T sub C = 25K. The results of the anisotropy study are used to explain the low-field magnetic behavior of the Y(Co sub 0.85 Al sub 0.15 ) sub 2 alloy.
ISSN:0953-8984