Visualizing Chiral Domain Walls (IMAGE)
Caption
The top row shows electron phase, the second row shows magnetic induction, and the bottom row shows schematics for the simulated phase of different magnetic domain features in multilayer material samples. The first column is for a symmetric thin-film material and the second column is for an asymmetric thin film containing gadolinium and cobalt. The scale bars are 200 nanometers (billionths of a meter). The dashed lines indicate domain walls and the arrows indicate the chirality or 'handedness.' The underlying images in the top two rows were producing using a technique at Berkeley Lab's Molecular Foundry known as Lorentz microscopy. Click the image to view at a larger size.
Credit
Lawrence Berkeley National Laboratory
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