The magnetic and transport properties of multilayer antidot nanostructure have been systematically investigated. The structures consisting of Co (30nm)∕Cu (tCunm)∕Ni80Fe20 (30nm) were fabricated using deep ultraviolet lithography followed by lift-off process. We observed that the magnetization reversal processes are markedly dependent on tCu due to the interplay of different interlayer coupling mechanisms. The transport properties of the antidot arrays typically show a superposition of anisotropic and giant magnetoresistance effects, and the relative magnitude of the two effects is strongly sensitive to tCu. This is completely different from the observations in the corresponding continuous films.
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Wang et al. (2006) studied this question.
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