Nanomagnet arrays fabricated by electrodeposition using self-assembled anodic aluminium oxide templates

A nonlithographic technique that utilizes highly ordered anodic aluminium oxide (AAO) membranes as templates has been employed to fabricate Co–Pt nanomagnet arrays. In particular, nanowire magnets with various aspect-ratios have been produced using AAO templates. For 14 nm Co 87Pt 13 nanowire arrays...

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Bibliographic Details
Published inMicroelectronic engineering Vol. 84; no. 5; pp. 1436 - 1439
Main Authors Li, Wuxia, Shen, Tiehan H.
Format Journal Article Conference Proceeding
LanguageEnglish
Published Amsterdam Elsevier B.V 01.05.2007
Elsevier Science
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Summary:A nonlithographic technique that utilizes highly ordered anodic aluminium oxide (AAO) membranes as templates has been employed to fabricate Co–Pt nanomagnet arrays. In particular, nanowire magnets with various aspect-ratios have been produced using AAO templates. For 14 nm Co 87Pt 13 nanowire arrays, an estimated areal density of about 500 Gb/in. 2 is readily achievable by an alternating current technique. It has been observed that the growth rate of nanowires reduces significantly with the increasing of electrodeposition time. Measurement of magnetic properties reveals that the coercivity and squareness obtained with the applied magnetic field parallel to the wire axis change with the nanowire length; however, there is relatively little change on the magnetic characteristics along the hard axis. An overall perpendicular magnetic anisotropy is obtained for nanowire arrays with aspect ratio ranges from 3.6 to 17, indicating the dominance of shape anisotropy for all these nanostructured magnets.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0167-9317
1873-5568
DOI:10.1016/j.mee.2007.01.229