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MR ratio dependence on RA for CPP-GMR films with a CCP-NOL. Black circle and blue square denote MR ratio for film I (without HIT) and film II (with HIT), respectively. Solid lines are guides for the eye. Insets are schematic images of the CCP-NOL with and without HIT.
APT images for CCP-NOLs for film I (without HIT) and film II (with HIT). The taken data was 10 nm in the direction of the page in order to include whole of NOL with curvature. The region inside the white circle is the observed field. Grey dot indicates CuO molecule and yellow region indicates CCP with Cu of over .
MR ratio dependence on oxide counts in CCP-NOL derived from APT analysis. Black circle and blue square denote MR ratio without the HIT process and with the HIT process, respectively. Broken line is a guide for the eye.
MR ratio dependence on RA. Black dot and blue square are the same data as those in Fig. 2. Red diamond denotes an MR ratio of CPP-GMR films with a CCP-NOL formed by the improved HIT process. Solid lines are the results fitted using the modified Valet-Fert model while changing the CCP resistivity, . Broken line is an MR ratio calculated by the same fitting with the CCP resistivity reduced to 20, 10, and .
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