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The authors present a new tomographic technique, based on Fourier transform holography. It is a lensless imaging technique to retrieve the object of interest from its diffraction pattern in a single step of computation. A combination of dual-axis tomographic projections provides a 3D vectorial magnetic image of an 800-n0{0ex}m-thick Fe/Gd multilayer in a 5-0{0ex}m-diameter field of view with a resolution of 80 n0{0ex}m. The reconstruction reveals not only wormlike domains with magnetization pointing mostly out of plane, but also the subtle features of magnetic flux closure around the domain walls.
Martínez et al. (Wed,) studied this question.
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