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- Title
COMPARISON OF INTERFACE AND STRUCTURE IN NiO-PINNING SPIN VALVES.
- Authors
Sun, L.; Du, J.; Chen, Z. R.; Ren, Y.; Zhang, A. M.; Sheng, W. T.; Zhang, W.; You, B.; Lu, M.; Hu, A.; Zhou, S. M.
- Abstract
Top and bottom NiO-pinning spin valves, e.g. Ta/NiO/Co/Cu/Co/Ta and Ta/Co/Cu/Co/NiO/Ta multilayers, were investigated extensively. At the same thickness of the Cu layer, the GMR ratio for the bottom one is about 30% larger than that for the top one, which is unambiguously due to the roughness effect at the NiO/Co interface. The roughness of NiO/Co interface of the top NiO-pinning spin valve is much larger than that of the bottom one, which may be due to the deposition sequence. On the other hand, although the preferred orientation of the top NiO-pinning spin valve is more prominent than that of the bottom one, it seems not favorable to the specular reflection effect.
- Subjects
SPIN valves; MAGNETIC devices; NITRIC oxide; COBALT; COPPER; SPECULAR reflectance
- Publication
International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics, 2005, Vol 19, Issue 15-17, p2716
- ISSN
0217-9792
- Publication type
Article
- DOI
10.1142/S0217979205031584