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Structural Effects in the Growth of Giant Magneto Resistance (GMR) Spin Valves



M. Menyhard, G. Zsolt, P. J. Chen, Cedric J. Powell, Robert D. McMichael, William F. Egelhoff Jr.


An investigation has been made of the thin-film structure and interface morphology of giant magnetoresistance (GMR) spin valves of the cobalt/copper/cobalt (Co/Cu/Co) type that were grown on polycrystalline NiO substrates at three different temperatures (150, 300 and 450 K). Sputter-depth-profile analyses indicate that the quality of the layering in the Co/Cu/Co structure was only slightly better for the 150 K sample than for the 300 K sample. For the 450 K sample, however, the Co/Cu/Co structure showed extensive disruption. The similarity in the depth-profiles for the 150 and 300 K samples indicates the sensitivity of the GMR to subtle structural differences.
Applied Surface Science


Giant magnetoresistance, Auger depth-profiling, Growth, Metal metal magnetic thin-film structure, Interface morphology


Menyhard, M. , Zsolt, G. , Chen, P. , Powell, C. , McMichael, R. and Egelhoff, W. (2001), Structural Effects in the Growth of Giant Magneto Resistance (GMR) Spin Valves, Applied Surface Science (Accessed February 28, 2024)
Created August 1, 2001, Updated February 19, 2017