Journal
NANOTECHNOLOGY
Volume 33, Issue 49, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1361-6528/ac8f97
Keywords
exchange bias; laser patterning; thin films; edge effects; angle dependence; magnetic anisotropy
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In this study, the effect of laser interference patterning on the magnetic properties of Pd/CoO/Co/Pd multilayers was investigated. It was found that laser treatment caused magnetic softening of the structure edges while the centers exhibited the exchange bias effect. The study focused on the shape and configurational magnetic anisotropies induced by patterning and showed that the magnetic properties varied depending on the angle of the external magnetic field.
Materials exhibiting an exchange bias effect are a class of magnetic systems that have a wide range of possible technological applications e.g. in sensors, read heads, and spintronic devices. In this study, we demonstrate the effect of laser interference patterning on the magnetic properties of Pd/CoO/Co/Pd multilayers. Laser patterning creates arrays of well-ordered stripes, rectangles, and squares on the substrate surface. We found that the laser treatment caused magnetic softening of the structure edges while the centers of the objects remained unchanged and exhibited the exchange bias effect. In this study we focused on the shape and configurational magnetic anisotropies induced by patterning and showed that the magnetic properties varied depending on the angle at which the external magnetic field was applied with respect to the pattern geometry.
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