Giant magnetoresistance and interlayer coupling in Co/Cu superlattices grown by e-beam evaporation have been investigated with the combined three-axis magneto-optical Kerr effect, magnetotransport measurements, X-ray diffraction, and transmission electron microscopy. Correlations between 90/spl deg/ alignment of the magnetization in adjacent layers and magnetoresistance oscillation curves suggest that the GMR in superlattices with imperfect interfaces results from 90/spl deg/ relative orientation of domains in adjacent Co layers.
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Yang et al. (1995) studied this question.
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