Results 231 to 240 of about 45,283 (268)
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Magnetocaloric effect in superparamagnets
Journal of Magnetism and Magnetic Materials, 1992The magnetocaloric effect is calculated for superparamagnetic materials as a function of temperature, field and cluster size. Assuming classical behavior, a universal curve is calculated from which an optimum cluster moment may be found for maximum entropy change upon application of a given field H at a given temperature T. Quantum effects are shown to
R.D. McMichael +4 more
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Plasmonic Gold−Superparamagnetic Hematite Heterostructures
Langmuir, 2011Bifunctional heterostructures composed of gold nanorods and hematite nanoparticle aggregates are prepared facilely through the hydrothermal decomposition of ferric acetylacetonate on the surface of the nanorods. The gold nanorod in the heterostructure is partially coated with the hematite nanoparticle aggregates. The hematite coating is porous.
Ngai, To +5 more
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Electrical control of superparamagnetism
Applied Physics Express, 2016Abstract The electric field control of superparamagnetism is realized using a Cu/Ni system, in which the deposited Ni shows superparamagnetic behavior above the blocking temperature. An electric double-layer capacitor (EDLC) with the Cu/Ni electrode and a nonmagnetic counter electrode is fabricated to examine the electric field effect on
Kihiro T. Yamada +10 more
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Superparamagnetism in Ising Clusters
1992Recent experiments on small ferromagnetic clusters have inspired introduction of a number of seemingly quite different theoretical models. We shall argue that all these models show superparamagnetic behaviour above the blocking temperature but below the Curie temperature.
J. Merikoski, M. Manninen, J. Timonen
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Toxicity assessment of superparamagnetic iron oxide nanoparticles in different tissues
Artificial Cells, Nanomedicine and Biotechnology, 2020Amir Abbas Momtazi +2 more
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