نتایج جستجو برای: magnetic interaction
تعداد نتایج: 885124 فیلتر نتایج به سال:
Micrometer and sub-micrometer sized non-magnetic particles were manipulated by an external strong magnetic field (e.g., 10 Tesla) with a high gradient. During the strong magnetic field effects, segregation of the non-magnetic particles was observed which could not be realised only with gravitational field. Numerical calculations were subsequently carried out to understand the effects on the ins...
for an Invited Paper for the MAR08 Meeting of The American Physical Society Homochiral magnetic structures at surfaces1 STEFAN BLUGEL, Institut fur Festkorperforschung, Forschungszentrum Julich, D-52425 Julich, Germany Electrons propagating in the vicinity of inversion asymmetric environments such as surfaces, interfaces, ultrathin films or nanostructures can give rise to an important antisymme...
The spin (ms) and orbital (mo) magnetic moment of the antiferromagnetic NiO and MnO have been studied in the local spin density approximation (LSDA+U) within full potential linear muffin-tin orbital (FP-LMTO method with in the coulomb interaction U varying from 0 to 10eV, exchange interaction J, from 0 to 1.0eV, and volume compression VC in range of 0 to 80%. Our calculated results shown that t...
We investigate the interaction between spherical magnetic nanoparticles which present either a single domain or a vortex structure. First the magnetic structure of a uniaxial soft sphere is revisited, and then the interaction energy is calculated from a micromagnetic simulation. In the vortex regime the orientation of the vortex relative to the easy axis depends on both the particle size and th...
In this research, Y3-xBixFe5O12 x = (0, 0.1, 0.2, 0.3) were synthesized by a sol–gel method. X-ray diffraction (XRD) patterns confirmed the pure spinel structure for all samples. The magnetic properties of the samples were investigated by the vibration sample magnetometer (VSM). The results obtained from VSM showed that saturation magnetization increases up to x = 0.1 and then decreases for x>...
In this research magnetic nanoparticles of cobalt–zinc ferrite (Co1-xZnxFe2O4, x=0, 0.2, 0.4, 0.6, 0.8), have been synthesized by the coprecipitation method, using stable ferric, zinc and cobalt salts with sodium hydroxide, at 80 ˚C. Phase formation and the morphology of the resulting nanoparticles were studied by X-ray diffraction and transmission electron microscopy respectively. Mean crystal...
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چکیده ندارد.
We demonstrate the nonresonant magnetic interaction at optical frequencies between a photonic crystal microcavity and a metallized near-field microscopy probe. This interaction can be used to map and control the magnetic component of the microcavity modes. The metal coated tip acts as a microscopic conductive ring, which induces a magnetic response opposite to the inducing magnetic field. The r...
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