M. S. Gabor, T. Petrisor Jr., C. Tiusan, M. Hehn, T. Petrisor
This paper shows the correlation between chemical order, lattice strains and magnetic properties of Heusler Co2FeAl ?lms epitaxially grown on MgO(001). A detailed magnetic characterization has been performed using vector ?eld magnetometery combined with numerical Stoner-Wohlfarth analysis. We demonstrate the presence of three types of in-plane anisotropies: one biaxial, as expected for the cubic symmetry, and other two uniaxial ones. The three anisotropies show di?erent behavior with the annealing temperature. The biaxial anisotropy shows a monotonous increase. The uniaxial anisotropy, parallel with the hard biaxial axes, related to the chemical homogeneity, decreases, while the other, supposed to have magnetostatic origin, remains constant.
View original:
http://arxiv.org/abs/1108.4043
No comments:
Post a Comment