Results 21 to 30 of about 114,750 (262)

Magnetic Nanoparticles: The Simulation of Thermodynamic Properties [PDF]

open access: yes, 2007
Magnetic materials are now controllable down to a nanometer length scale and, hence, there is a broad interest in the understanding of magnetic phenomena in nanostructured systems. With decreasing size thermal activation becomes more and more relevant and the understanding of the role of temperature for the dynamic behavior and for the magnetic ...
Nowak, Ulrich, Hinzke, Denise
openaire   +2 more sources

Magnetic nanoparticles: From the nanostructure to the physical properties

open access: yesJournal of Magnetism and Magnetic Materials, 2022
Some of the synthesis methods and physical properties of iron-oxide based magnetic nanoparticles such as Fe3-xO4 and CoxFe3-xO4 are reviewed because of their interest in health, environmental applications, and ultra-high-density magnetic recording. Unlike high crystalline quality nanoparticles larger than a few nanometers that show bulk-like magnetic ...
Batlle Gelabert, Xavier   +5 more
openaire   +3 more sources

Influence of the Inverse Faraday Effect on Switching and Oscillations of Magnetization in Single-Domain Nanoparticles [PDF]

open access: yesЖурнал нано- та електронної фізики, 2012
We have performed a numerical simulation of magnetization switching and oscillations in a ferromagnetic single-domain particle in the disk form under the influence of nanosecond laser pulses with linear and circular polarization.
A.L. Daniluyk, A.V. Kukharev
doaj  

MAGNETIC NANOPARTICLES: THE COBALT

open access: yesEclética Química, 2018
The development of nanoparticles has been intensively pursued because of their technological importance. The magnetic nanoparticulate materials exhibit a series of interesting properties between which are mentioned the electrical, optical, magnetic and ...
Vagner Sargentelli, Antonio P. Ferreira
doaj   +1 more source

Tunable magnetic properties of CoPt nanoparticles: Impacts of phase coexistence and thermal annealing

open access: yesJournal of Science: Advanced Materials and Devices, 2023
Nanostructured materials such as CoPt nanoparticles with tunable hard magnetic properties are desirable for a wide range of technological applications. In CoPt nanoparticle systems, a structurally disordered fcc phase may be transformed into an ordered ...
Nguyen Hoang Nam   +5 more
doaj   +1 more source

Magnetic Properties of CoFe0.5Cr1.5O4 Nanoparticles

open access: yes, 2012
[ES]: Nanopartículas de CoFe0:5Cr1:504 fueron sintetizadas mediante el método de auto-combustión. Las propiedades estructurales y magnéticas fueron especialmente estudiadas. Los polvos obtenidos fueron caracterizados mediante difracción de rayos-X (XRD) y medidas magnéticas en función de la temperatura y del campo magnético aplicado.
Márquez, G.   +5 more
openaire   +2 more sources

Magnetic properties of NiO nanoparticles [PDF]

open access: yesThin Solid Films, 2006
Abstract Nickel oxide nanoparticles of different sizes are prepared by a sol–gel method. Samples are characterized by X-ray diffraction and transmission electron microscopy. Dc susceptibility measurements as a function of temperature and field are done for various particle sizes. We find peaks in zero field cooled susceptibility vs.
S.D. Tiwari, K.P. Rajeev
openaire   +1 more source

Effect of large mechanical stress on the magnetic properties of embedded Fe nanoparticles

open access: yesBeilstein Journal of Nanotechnology, 2011
Magnetic nanoparticles are promising candidates for next generation high density magnetic data storage devices. Data storage requires precise control of the magnetic properties of materials, in which the magnetic anisotropy plays a dominant role.
Srinivasa Saranu   +6 more
doaj   +1 more source

Preliminary report on MFM measurements on magnetic nanofiber mats

open access: yesCommunications in Development and Assembling of Textile Products, 2021
Nanofiber mats can be produced unambiguously by electrospinning. Besides pure polymers or polymer blends, such nanofibers can also contain metals, ceramics, etc., often introduced in the form of nanoparticles embedded in the spinning solution. Especially
Raphael Weiss, Andrea Ehrmann
doaj   +1 more source

Magnetic Properties of La0.8K0.2MnO3 Nanoparticles

open access: yesEPJ Web of Conferences, 2014
Magnetic properties of La0.8K0.2MnO3have been studied on nanoparticles prepared by glycine – nitrate method. As prepared nanoparticles and samples annealed at 300°C/2 hours adopt orthorhombic crystal structure (space group Pbnm).
Mihalik M.   +6 more
doaj   +1 more source

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