GMR in multilayered nanowires electrodeposited in track-etched polyester and polycarbonate membranes |
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Authors: | F Nasirpouri P Southern M Ghorbani A Iraji zad W Schwarzacher |
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Institution: | 1. H. H. Wills Physics Laboratory, Tyndall Avenue, Bristol BS8 1TL, UK;2. Departments of Materials Science & Engineering and Physics, Sharif University of Technology, Tehran, Iran |
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Abstract: | Commercially available track-etched polyester membranes were used as templates to electrodeposit Co–Ni–Cu/Cu multilayered nanowires, giving room-temperature current perpendicular to plane (CPP) giant magnetoresistance (GMR) values of up to ∼12%. In contrast to similar nanowires electrodeposited in track-etched polycarbonate membranes, the GMR obtained in multilayered nanowires electrodeposited in the polyester membranes increased with decreasing Cu-layer thickness tCu, for tCu in the 2–7 nm range, indicating a lack of ferromagnetic coupling through pinholes, etc. Transmission electron micrographs showed clear evidence for smooth, parallel layer interfaces in the nanowires. |
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Keywords: | 75 47 De 75 70 Cn 81 15 Pq |
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