Super spin dimensionality of a mono-dispersed and densely packed magnetic nanoparticle system
2014 (English)Conference paper (Refereed)
The dynamics of a dense near mono-dispersed assembly of maghemite nanoparticles is investigated by measurements of the temperature dependence of the isothermal remnant magnetization induced by temporal application of weak magnetic fields at constant temperature. The results suggest that the dimensionality of the super spins of the particles is of Heisenberg character at high temperatures but crossover to become Ising like at lower temperatures.
Place, publisher, year, edition, pages
2014. Vol. 521, 012012- p.
, Journal of Physics Conference Series, 521
Physical Sciences Engineering and Technology
Research subject Engineering Science with specialization in Solid State Physics
IdentifiersURN: urn:nbn:se:uu:diva-230256DOI: 10.1088/1742-6596/521/1/012012ISI: 000339299200012OAI: oai:DiVA.org:uu-230256DiVA: diva2:739436
8th International Conference on Fine Particle Magnetism (ICFPM), JUN 24-27, 2013, Perpignan, FRANCE