Abstract
Anodized aluminum oxide (AAO) thick films with numerous nanochannels have been exfoliated mechanically by the pressure of hydrogen gas generated at the interface between an oxide layer and a metallic aluminum during the subsequent cathodic reduction process after growing of anodic aluminum oxide layer. Co/Cu multilayered nanowires with alternating Co and Cu layers of 10 nm in thickness have been electrodeposited into extremely long nanochannels of AAO films with 60 µm in thickness. Average growth rate of the multilayered nanowires is around 18.2 nm sec-1 and the cylindrical shape is precisely transferred from the nanochannels to the nanowires and the aspect ratio reaches up to ca. 1,000. Co/Cu multilayered nanowires with diameter 60 nm are easily magnetized to the long axis direction of nanowires due to the uni-axial shape anisotropy. 30% of current perpendicular to plane giant magnetoresistance effect has been observed in the multilayered nanowires with 6,000 Co/Cu bilayers.
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Ishizuka, K., Zenimoto, Y., Ohgai, T. (2015). CPP-GMR of Multilayered Nanowires Electrodeposited into Anodized Aluminum Oxide Nanochannel Filters Mechanically Exfoliated from Metallic Aluminum Rods. In: TMS 2015 144th Annual Meeting & Exhibition. Springer, Cham. https://doi.org/10.1007/978-3-319-48127-2_44
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DOI: https://doi.org/10.1007/978-3-319-48127-2_44
Publisher Name: Springer, Cham
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