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首页> 外文期刊>Physical review, B. Condensed matter and materials physics >Magnetic and structural anisotropies of Co_2FeAl Hensler alloy epitaxial thin films
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Magnetic and structural anisotropies of Co_2FeAl Hensler alloy epitaxial thin films

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This paper shows the correlation between chemical order, lattice strains, and magnetic properties of Heusler Co_2FeAl films epitaxially grown on MgO(001). A detailed magnetic characterization is performed using vector-field magnetometery combined with a numerical Stoner-Wohlfarth analysis. We demonstrate the presence of three types of in-plane anisotropies: one biaxial, as expected for the cubic symmetry, and two uniaxial. The three anisotropies show different behavior with the annealing temperature. The biaxial anisotropy shows a monotonic increase. The uniaxial anisotropy that is parallel to the hard biaxial axes (related to chemical homogeneity) decreases, while the anisotropy that is supposed to have a magnetostatic origin remains constant.

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