Domain structures and magnetic anisotropy of TbFe12-xTix single crystals



Publication Details

Han, Y. N., Zhang, Z. R., Wang, J., Wu, G., Han, X. F. & Han, B. S. (2008). Domain structures and magnetic anisotropy of TbFe12-xTix single crystals. Journal of Magnetism and Magnetic Materials, 320 (21), 2831-2834.


The domain structures of TbFe12-xTix (x=0.85, 1.0, and 1.3) single crystals in different crystal planes have been investigated using magnetic force microscopy. The patterns with large contrast are observed in (1 1 0) and (1 0 0) planes for the samples of x=0.85, while the slight contrast is detected in (0 0 1) plane, indicating the anisotropy is easy plane. By increasing x to 1.0 and 1.3, the domain structures change dramatically in (1 1 0), (1 0 0), and (0 0 1) planes. This demonstrates that the anisotropy transforms from easy plane to easy axis, which is related to spin reorientation and the strong magneto-crystalline anisotropy in the basal plane. The calculation of the domain patterns according to the Hubert model shows that the domains are the branching outcome of the basic domains.

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