Results 171 to 180 of about 7,335 (259)

Critical phenomena of magnetization, magnetocaloric effect, and superparamagnetism in nanoparticles of non-stoichiometric manganite

Journal of Alloys and Compounds, 2020
Magnetic nanoparticles of the La0.6Ag0.2Mn1.2O3 manganite with superstoichiometric manganese have been obtained using nitrate pyrolysis method. Structure, phase composition, morphology, and size of the nanoparticles have been determined.
N A Liedienov   +2 more
exaly   +2 more sources

Superparamagnetism

open access: yesRadiopaedia.org, 2011
Jeremy Jones, J. Ballinger
semanticscholar   +3 more sources

Superparamagnetism

open access: yesJournal of Applied Physics, 1959
Single domain ferromagnetic particles at elevated temperatures can behave magnetically in a manner analogous to the Langevin paramagnetism of moment-bearing atoms. The main distinction is that the moment of the particle may be 105 times the atomic moment. The experimental and theoretical foundations of this effect are reviewed and indication is made of
C. P. Bean, J. D. Livingston
openaire   +2 more sources

Magnetoelectric Control of Superparamagnetism

open access: yesNano Letters, 2013
Here we demonstrate electric-field induced magnetic anisotropy in a multiferroic composite containing nickel nanocrystals strain coupled to a piezoelectric substrate. This system can be switched between a superparamagnetic state and a single-domain ferromagnetic state at room temperature.
Hyungsuk K D, Kim   +5 more
openaire   +3 more sources

Superparamagnetism in CoFe2O4 nanoparticles: An example of a collective magnetic behavior dependent on the medium

Journal of Alloys and Compounds, 2018
Cobalt ferrite particles with homogeneous microstructure have been prepared encased in MCM-41 (Mobil Composition Matter) and SBA-15 (Santa Barbara Amorphous) silica mesoporous structures.
V Blanco-GutiƩrrez, R Saez-Puche
exaly   +2 more sources

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