Angular dependence of coercivity in magnetic nanotubes

J. Escrig, M. Daub, P. Landeros, K. Nielsch, D. Altbir

Research output: Contribution to journalArticle

71 Citations (Scopus)

Abstract

The nucleation field for infinite magnetic nanotubes, in the case of a magnetic field applied parallel to the long axis of the tubes, is calculated as a function of their geometric parameters and compared with those produced inside the pores of anodic alumina membranes by atomic layer deposition. We also extended this result to the case of an angular dependence. We observed a transition from curling-mode rotation to coherent-mode rotation as a function of the angle in which the external magnetic field is applied. Finally, we observed that the internal radii of the tubes favors the magnetization curling reversal. © IOP Publishing Ltd.
Original languageEnglish
JournalNanotechnology
DOIs
Publication statusPublished - 7 Nov 2007

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