An approach to fabricate ferromagnetic∕polymer composite nanotubes has been developed. The surfaces of the pores in self-ordered porous alumina membranes are wetted with a polystyrene or poly-l-lactide layer containing a metallo-organic precursor. Decomposition of the precursor leads to the formation of thin-walled magnetic tubes with diameters of and wall thicknesses of a few nanometers. The magnetic properties of the tube arrays are interpreted as a result of the tube morphology and microstructure.
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