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Shape effect on the magnetic anisotropy of an array of epitaxial (10·0) Co dots

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7 Author(s)
Kohda, T. ; Dept. of Mater. Sci., Tohoku Univ., Sendai, Japan ; Otani, Y. ; Novosad, V. ; Fukamichi, K.
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The competition between the magnetocrystalline and shape anisotropies was studied by using a submicron-size epitaxial (10·0) Co rectangular dots array. The measured torque curves exhibit the magnetic anisotropy with a four-fold symmetry, indicating a clear magnetic easy-axis reorientation. The results were successfully interpreted by taking into account the first order magnetocrystalline, shape and non-negligible second order magnetocrystalline anisotropies

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Magnetics, IEEE Transactions on  (Volume:35 ,  Issue: 5 )