The domain structure of relatively thick RF-sputtered CoCr (81:19 at.%) layers with a columnar morphology in the range of thickness 1-5 mu m was investigated using a polarised neutron beam. On the basis of the results a model of straight domains running through the entire film thickness has to be rejected. Arguments are given for a serpentine-like domain structure with a domain width about the same as the column diameter (0.1-0.3 mu m), resulting in a 'chain of columns' model.
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Hemmes et al. (1984) studied this question.
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