Local setting of magnetic anisotropy in amorphous films by Co ion implantation
Local setting of magnetic anisotropy in amorphous films by Co ion implantation
McCord, J.; Mönch, I.; Fassbender, J.; Gerber, A.; Quandt, E.
The local setting of magnetic anisotropy by low fluence Co ion implantation in amorphous magnetic thin films is demonstrated. For a wide range of ion fluences no structural changes occur and the adjustment of anisotropy is reversible. A quantitative relationship between the anisotropy change and the atomic displacements is found. Magnetic domain investigations of the purely magnetically patterned stripes reveal an effective quasi-cubic anisotropy below a critical width for orthogonal magnetic anisotropy alignment. The method of ion-annealing allows for a local setting of anisotropy without irreversible structural and magnetic alterations.
Keywords: magnetism; ion implantation; amorphous films; patterning; anisotropy
-
Journal of Physics D: Applied Physics 42(2009), 055006
DOI: 10.1088/0022-3727/42/5/055006
Cited 26 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-12317