Investigation of the magnetization reversal mechanism of electrolessly deposited Co-B nanotubes

peer-reviewedCo-B nanotubes were prepared via an electroless deposition method. The\udmorphology, magnetic properties and the magnetization reversal mechanism of the\udnanotubes were investigated. Deposition was carried out in porous polycarbonate\udmembranes leading to the formation of Co-B nanotubes with an average external\uddiameter of 400 nm and lengths up to 6 μm. Electroless deposition resulted in\udthe formation of alloys with composition Co70B30 and a specific magnetization of\ud65.6 J T−1kg−1, which is about 40 % of that of pure Co (161 J T−1kg−1). The\udtransversal and vortex modes were identified as the mechanisms responsible for\udmagnetization reversal in the nanotubes. A crossover between the two modes is\udobserved at low angles and the results are in line with current models for switching\udmechanisms of nanotubes