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Imaging the in-plane magnetization in a Co microstructure by Fourier transform holography

Optics Express, ISSN: 1094-4087, Vol: 18, Issue: 26, Page: 27251-27256
2010
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Article Description

We report on experiments using Fourier transform holography to image the in-plane magnetization of a magnetic microstructure. Magnetic sensitivity is achieved via the x-ray magnetic circular dichroism effect by recording holograms in transmission at off-normal incidence. The reference beam is defined by a narrow hole milled at an inclined angle into the opaque mask. We present magnetic domain images of an in-plane magnetized cobalt element with a size of 2μm × 2μm× 20nm. The domain pattern shows a multi-vortex state that deviates from the simple Landau ground state. © 2010 Optical Society of America.

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