Hysteresis-free switching between vortex and collinear magnetic states
2014 (English)In: New Journal of Physics, ISSN 1367-2630, Vol. 16, 053002- p.Article in journal (Refereed) Published
We demonstrate a lossless switching between vortex and collinear magnetic states in circular FePd disks arranged in a square lattice. Above a bifurcation temperature (Te) we show that thermal fluctuations are enough to facilitate flipping between the two distinctly different magnetic states. We find that the temperature dependence of the vortex annihilation and nucleation fields can be described by a simple power law relating them to the saturation magnetization.
Place, publisher, year, edition, pages
2014. Vol. 16, 053002- p.
Condensed Matter Physics
IdentifiersURN: urn:nbn:se:uu:diva-224245DOI: 10.1088/1367-2630/16/5/053002ISI: 000335383800002OAI: oai:DiVA.org:uu-224245DiVA: diva2:715981
FunderKnut and Alice Wallenberg FoundationSwedish Research Council