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Super spin dimensionality of a mono-dispersed and densely packed magnetic nanoparticle system
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
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2014 (English)Conference paper, Published paper (Refereed)
Abstract [en]

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.
Series
Journal of Physics Conference Series, 521
National Category
Physical Sciences Engineering and Technology
Research subject
Engineering Science with specialization in Solid State Physics
Identifiers
URN: urn:nbn:se:uu:diva-230256DOI: 10.1088/1742-6596/521/1/012012ISI: 000339299200012OAI: oai:DiVA.org:uu-230256DiVA: diva2:739436
Conference
8th International Conference on Fine Particle Magnetism (ICFPM), JUN 24-27, 2013, Perpignan, FRANCE
Available from: 2014-08-21 Created: 2014-08-21 Last updated: 2014-10-06Bibliographically approved

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Andersson, MikaelMathieu, RolandNordblad, Per

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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Output format
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