Shifting and pinning of a magnetic vortex core in a permalloy dot by a magnetic field.
Magnetic pinning in thin films seems to be a major research subject in the near future, as it is involved in all switching processes which include a movement of a domain wall or a magnetic vortex. We used Lorentz transmission electron microscopy and vortex pinning at artificial pinning sites to investigate the pinning behavior of magnetic vortices for the first time with high spatial resolution.
Uhlig
Thomas
T
Institut für Angewandte Physik, Universität Regensburg, 93040 Regensburg, Germany.
Rahm
M
M
Dietrich
Christian
C
Höllinger
Rainer
R
Heumann
Martin
M
Weiss
Dieter
D
Zweck
Josef
J