TITLE

Fabrication and magnetic characterization of Co x Pt1- x nanowire arrays

AUTHOR(S)

Shamaila, S.; Sharif, R.; Riaz, S.; Khaleeq-ur-Rahman, M.; Han, X. F.

PUB. DATE

August 2008

SOURCE

Applied Physics A: Materials Science & Processing;Aug2008, Vol. 92 Issue 3, p687

SOURCE TYPE

Academic Journal

DOC. TYPE

Article

ABSTRACT

Co x Pt1- x ( x=0.7) alloy nanowires are grown into self-synthesized anodic alumina templates by electrodeposition. Magnetic and magnetization properties of Co x Pt1- x alloy nanowires are measured as functions of wire length, temperature, and field orientation. X-ray diffraction shows that as-prepared CoPt nanowires are of fcc polycrystalline structure. A crossover of easy axis of magnetization is observed from parallel to perpendicular of the nanowire axis as a function of length. The coercivity ( H c) and remanent squareness ( SQ) of Co x Pt1- x nanowire arrays are derived from hysteresis loops measured at various angles ( ?) between the field and wire axis. H c( ?) and SQ( ?) curves show bell-shaped or otherwise bell-shaped behavior corresponding to the easy axis of their magnetization.

ACCESSION #

33332426

Tags: MAGNETISM;  NANOWIRES;  MAGNETIC induction;  ALLOY plating;  ALUMINUM oxide;  HYSTERESIS loop

 

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