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Electrodeposition of cobalt based ferro-magnetic metal nanowires in polycarbonate films with cylindrical nanochannels fabricated by heavy-ion-track etching
Nagasaki University. (Dept. Materials Science and Engineering, Faculty of Engineering)
2008 (English)In: Journal of Applied Electrochemistry, ISSN 0021-891X, E-ISSN 1572-8838, Vol. 38, 713-719 p.Article in journal (Refereed) Published
Abstract [en]

Polycarbonate films of thickness 30 lm were irradiated with heavy ions by applying a flux of 108 ions cm-2 to produce straight tracks perpendicular to the film surface. The tracks were preferentially etched in 6 M aqueous solution of sodium hydroxide to prepare cylindrical nanochannels. The channel diameters were tuned between 200 and 600 nm by varying the etching time. Co81Cu19 alloy nanowires were electrodeposited potentiostatically, while Co/Cu multilayered nanowires, consisting of alternating Co and Cu layers with thickness 10 nm, were synthesized by means of a pulse plating technique in channels of length 30 lm and diameter 200 nm. Co81Cu19 alloy nanowires showed an anisotropic magnetoresistance effect of 0.6%, and the giant magnetoresistance of Co/Cu multilayered nanowires reached up to 8.0%.

Place, publisher, year, edition, pages
2008. Vol. 38, 713-719 p.
Keyword [en]
Heavy ion, Polycarbonate, Electrodeposition, Cobalt, Copper, Nanochannel
Research subject
Physics
Identifiers
URN: urn:nbn:se:uu:diva-111267OAI: oai:DiVA.org:uu-111267DiVA: diva2:285387
Note
Paper IV of dissertationAvailable from: 2010-01-11 Created: 2009-12-08 Last updated: 2017-12-12

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