Eur. Phys. J. B 66, 37-40 (2008)
https://doi.org/10.1140/epjb/e2008-00385-4

Angular dependence of the transverse and vortex modes in magnetic nanotubes

¹ Departamento de Física, Universidad de Santiago de Chile, USACH, Av. Ecuador 3493, Santiago, Chile
² Instituto de Física, Universidade Federal do Rio Grande do Sul, CP 15051, 91501-970 Porto Alegre, RS, Brazil
³ Universidade Federal do Rio de Janeiro, Instituto de Física, CP 68528, 21941-972 Rio de Janeiro, Brazil

Corresponding author: ^a sallende@fisica.usach.cl

Received: 29 April 2008
Revised: 11 August 2008
Published online: 11 October 2008

Abstract

The angular dependence of the transverse and vortex modes in a magnetic nanotube is investigated as a function of the tube geometry, by means of analytical calculations and numerical simulations. A critical radius defining the transition between vortex and transverse reversal modes is determined, leading to low or high coercivity modes just by varying the direction of the external field, in a fixed nanotube.