Structural and magnetic properties of various ferromagnetic nanotubes

Xiu Feng Han, Shahzadi Shamaila, Rehana Sharif, Jun Yang Chen, Hai Rui Liu, Dong Ping Liu

Research output: Contribution to journalArticlepeer-review

103 Scopus citations

Abstract

The structural and magnetic properties of ferromagnetic nanotubes fabricated by a low cost electrodeposition method are investipted. The fabrication of various elemental ferromagnetic materials are described, such as Fe, Co, and Ni, and ferromagnetic alloys, such as NiFe, CoPt, CoFeB, and CoCrPt nanotube arrays, in aluminum oxide templates and polycarbonate membranes with different diameters, wall thicknesses, and lengths. The structural, magnetic, and magnetization reversal properties of these nanotubes are investigated as a function of the geometrical parameters. The angular dependence of the coercivity indicates a transition from the curling to the coherent mode for the ferromagnetic nanotubes. The results show that nanotube fabrication allows the outer and inner diameter, length, and thickness of the nanotubes to be tuned systematically. The magnetization processes of ferromagnetic nanotubes are influenced by the wall thickness.

Original languageEnglish (US)
Pages (from-to)4619-4624
Number of pages6
JournalAdvanced Materials
Volume21
Issue number45
DOIs
StatePublished - Dec 4 2009

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