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. 2015 Dec 8;6:8957. doi: 10.1038/ncomms9957

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Top view sketch of Bloch (a) and Néel (b) walls in a thin film. The red arrows show the direction of the moments in the centre of the wall between the domains with indicated magnetization orientation. The calculated defocused Fresnel L-TEM contrasts for these DWs are shown in c and d for cases with a sample tilt of θ=0° away from normal incidence, respectively. (e,f) Calculated contrast for θ=30° where the blue arrows indicate the sample tilt axis and its rotation direction. The dark or white electron beam intensity contrasts correspond to regions where the magnetic induction distribution results in the electron beam converging or diverging, respectively.