Abstract
The micromagnetic structure in epitaxial (001)-oriented Cu/Ni(14 nm)/Cu rings fabricated by electron beam and focused ion beam lithographies with external diameter of 3 μm and linewidths between 100 and 500 nm is presented. We found that a state with radial orientation of the magnetization prevails at remanence. The evaluation of the magnetoelastic, magnetocrystalline and magnetostatic energies shows that a value as low as 1.5 × 10-3 for the anisotropic relaxation of the in-plane strain components is enough to induce an effective radial easy magnetization direction.
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Corredor, E., Coffey, D., Arnaudas, J. et al. Transverse magnetization in Cu/Ni/Cu epitaxial nanorings. Eur. Phys. J. B 86, 134 (2013). https://doi.org/10.1140/epjb/e2013-30935-4
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DOI: https://doi.org/10.1140/epjb/e2013-30935-4