Control of the chirality and polarity of magnetic vortices in triangular nanodots

Physics – Condensed Matter – Materials Science

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

18 pages, 11 figures

Scientific paper

10.1103/PhysRevB.81.054439

Magnetic vortex dynamics in lithographically prepared nanodots is currently a subject of intensive research, particularly after recent demonstration that the vortex polarity can be controlled by in-plane magnetic field. This has stimulated the proposals of non-volatile vortex magnetic random access memories. In this work, we demonstrate that triangular nanodots offer a real alternative where vortex chirality, in addition to polarity, can be controlled. In the static regime, we show that vortex chirality can be tailored by applying in-plane magnetic field, which is experimentally imaged by means of Variable-Field Magnetic Force Microscopy. In addition, the polarity can be also controlled by applying a suitable out-of-plane magnetic field component. The experiment and simulations show that to control the vortex polarity, the out-of-plane field component, in this particular case, should be higher than the in-plane nucleation field. Micromagnetic simulations in the dynamical regime show that the magnetic vortex polarity can be changed with short-duration magnetic field pulses, while longer pulses change the vortex chirality.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Control of the chirality and polarity of magnetic vortices in triangular nanodots does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Control of the chirality and polarity of magnetic vortices in triangular nanodots, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control of the chirality and polarity of magnetic vortices in triangular nanodots will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-357661

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.