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
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.
PACS: 73.63.Fg – Nanotubes / 74.25.Ha – Magnetic properties
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2008