Thermal transitions in nano-patterned XY-magnets
2014 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 105, no 4, 042409- p.Article in journal (Refereed) Published
We have fabricated ultra-thin disc shaped islands wherein shape anisotropy confines the moment to the island plane, creating XY-like superspins. At low temperatures, the superspins are blocked, and, as the temperature is increased, they undergo a transition into a superparamagnetic state. The onset of this dynamic superspin state scales with the diameter of the islands, and it persists up to a temperature governed by the intrinsic ordering temperature of the island material defining a range in temperature in which dynamic behavior of the magnetic islands can be obtained.
Place, publisher, year, edition, pages
2014. Vol. 105, no 4, 042409- p.
IdentifiersURN: urn:nbn:se:uu:diva-233110DOI: 10.1063/1.4891479ISI: 000341152600055OAI: oai:DiVA.org:uu-233110DiVA: diva2:751665