ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
As-received multilayered Co/Cu nanowire arrays were examined by TEM, which weresynthesized by pulsed DC electrodeposition using anodized aluminum oxide (AAO) templates. Themultilayered Co/Cu nanowire exhibited magnetism in the perpendicular direction to the long wireaxis. These nanowire can be applied to sensor array, magnetic bead(biocompatible), MRI contrastenhancing agent, ferro-fluid. Although the characterization of the multilayered Co/Cu nanowireusing XRD and VSM and microstructural analysis using TEM on the bare nanowires extracted fromAAO templates have been reported, interface analysis between Co and Cu phase or HREM analysishas not been reported in detail. We have prepared TEM specimen with large thin area which wasappropriate for the interface analysis between Co and Cu layer without removing AAO templatesusing tripod polishing method. Tripod polishing proved very efficient to secure the large observablearea during TEM session since the polishing angle can be precisely controlled, regardless of themechanical strength differences in constituents. Thus we could observe not only the interfacebetween Co and Cu layer but also the interface between the metallic layers and AAOtemplates. Microstructure, composition, and the concentration variation of each Co and Cu layer andthe interfaces were analyzed with TEM and STEM
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/23/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.124-126.1233.pdf
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