Showing papers in "Journal of Magnetism and Magnetic Materials in 2000"

TL;DR: In this paper, the authors present a review of the development of thin film ferrite technology and device design in planar microwave devices and their magnetic losses related to planar shape and inhomogeneous internal fields.

TL;DR: In this paper, it was shown that drawing water through a static magnetic "eld (B+0.1T, +B+10 T/m) increases the aragonite/calcite ratio in the deposit.

TL;DR: In this article, a comparison of the results between particle dispersions with different concentrations in polyvinylic alcohol and phosphate-coated particles provides evidence for the interplay between surface anisotropy, intraparticle exchange coupling between surface and core, and interparticle interactions.

TL;DR: A nitrate-citrate gel was prepared from metal nitrates and citric acid by sol-gel process, in order to synthesize Ni 0.25 Cu 0.50 Fe 2 O 4 ferrite as discussed by the authors.

TL;DR: In this paper, a non-conventional citrate precursor method was used for the preparation of NiZn ferrites in the frequency range 100-kHz to 8-MHz.

TL;DR: In this paper, the authors reviewed several promising permanent magnet (PM) films used for the applications in microelectromechanical system (MEMS) and elucidated the selection rules for PM films.

TL;DR: Magnetic entropy change larger than that of gadolinium has been observed near room temperature in polycrystalline of La 08 Ag 02 MnO 3 perovskite-type manganite.

TL;DR: In this article, the authors present the general trends of the influence of manufacturing processes on the magnetic properties of non-oriented fully-processed electrical steels and present a model of the effect of manufacturing conditions on the properties of magnetic components.

TL;DR: ZnCo-substituted W-type barium hexagonal ferrite of the order of nanoscale is synthesized and investigated as microwave absorber in this article, based on a two-layer structure with the thickness of only 1 mm, a big reflection loss over broadband is obtained.

TL;DR: In this paper, the electrical transport properties of grain boundaries in epitaxial thin films of perovskite manganites have been studied as a function of temperature and applied magnetic field.

TL;DR: In this article, the crystal and molecular structure of nonanickel complex [Ni 9 (l 9 -(peptea) 4 Cl 2 ] which is the longest metal string at this moment was reported.

TL;DR: In this paper, the structure of weakly magnetic and strongly magnetic iron sulphide was examined using high-resolution imaging and electron diffraction in a transmission electron microscope (TEM), the measurements of magnetisation versus field and temperature, extended X-ray absorption fine-structure (EXAFS) spectroscopy and neutron diffraction.

TL;DR: In this article, the use of magnetic films for miniaturization of planar inductors operating at ultra-high frequencies is reviewed, and magnetic dissipation and their role in limiting the device operation frequency range and quality factor are discussed.

TL;DR: The application of amorphous soft magnets in electric-utility and industrial transformers is increasingly being adopted, helping to solve global warming and energy-saving problems as mentioned in this paper, where fundamental problems associated with the applications are mentioned.

TL;DR: In this article, Fe was electrodeposited into the holes of porous anodic aluminium oxide (AAO) which was prepared electrochemically, and X-ray diffraction (XRD) spectra illustrated that the deposited material was α-Fe.

TL;DR: In this paper, the influence of current annealing on magnetic properties of a glass-covered amorphous Co 68.25 Fe 4.5 Si 12.25 B 15 (29.3μm) microwave was investigated.

TL;DR: In this paper, the progress made in constructing an all-oxide spin valve based on the intrinsic, fully spin-polarized electron transport in Fe 3 O 4 is discussed, and two possible oxidic spacer layers have been investigated.

TL;DR: In this article, the results of magnetic measurements performed on specially prepared steel samples were made after the samples had been uniaxially plastically deformed and the applied stress removed.

TL;DR: The application of ferrites in non-reciprocal components is discussed, with the emphasis on broadband isolators and circulators, and the ratio fmax/fmin of the frequencies that define the edges of the frequency band is characterized.

TL;DR: In this paper, magnetic and magnetotransport experimental data in well-characterized small particles of La 0.67 Ca 0.33 MnO 3 are presented, and low-temperature resistivity upturn present in small particle size samples can be understood in terms of an electrostatic barrier between grains.

TL;DR: In this article, the authors proposed a new core shape and signal processing methods to improve the accuracy of fluxgate performance, which is often degraded by crossfield response, non-linearities, hysteresis and perming effects.

TL;DR: In this article, a review on the formation, thermal stability and magnetic properties of the Fe-based bulk glassy alloys in as-cast bulk and melt-spun ribbon forms is presented.

TL;DR: In this article, magnetic properties of La0.6Ca0.4MnO3 with perovskite-like structure were investigated for use as an active magnetic refrigerant.

TL;DR: Microwave sintering technique was successfully applied for densifying (Ni1-x-yZnxCuy) Fe2O4 ferrite materials and multilayer chip (MC) inductors as mentioned in this paper.

TL;DR: In this article, the effects of cutting on power loss, localised flux distribution and B-H curves of a fully processed, high permeability non-oriented electrical steel were described.

TL;DR: A newly developed colloidal magnetic fluid (MF) was investigated for use as high-voltage insulation in this paper, which is a liquid magnet that interacts with the magnetic field of transformer windings and improves their cooling, while at the same time MF increases the lightning impulse withstand voltage and decreases the discharge propagation velocity, probably due to the presence of magnetite nanoparticles.

TL;DR: In this article, a brief review of the different requirements for magnetic measurement techniques for material research, modelling of material properties and grading of the electrical sheet steel for trade purposes is presented, which leads to a possible solution of the problem, i.e. the possibility of converting the results of one of the two methods into the results from the other in order to satisfy the users of the Epstein method and, at the same time, to improve the acceptance of the more economical SST method.

TL;DR: In this paper, the particle size distributions in Co-Al-O insulating granular films with various Co concentrations (x Co ) were investigated by analyzing the superparamagnetic behavior of magnetization.

TL;DR: In this paper, Li 0.5− x /2 Co x Fe 2.5 − x/2 O 4 (where x = 0.1, 0.2, 0 3, 0 4, 0 5, 0 6, 0 7) were prepared by the standard ceramic method.

TL;DR: The magnetic memory medium in present disk memories is a continuous film of independently switching single-domain particles and the granularity of the medium produces noise which becomes unacceptable at very small bit sizes as discussed by the authors.