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Materials Science Poland
2013 Vol. 31, No. 4 601--610
EN Two samples containing phases formed in the FeVO4–Co3V2O8 system were prepared by a conventional sintering method. The sample designated as H5 was one-phase with the howardevansite-type structure, while the sample designated as HL7 contained a mixture of H-type and lyonsite-type structures. The temp[...]
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Advances in Materials Science
EN Nanocrystalline melt-spun rare earth - iron - boron alloys based on Pr and on Nd-Pr mixtures have been studied. Their magnetic properties are compared with those of corresponding alloy ribbons based on Nd. The Pr containing alloys have gener-ally higher coercivity than their Nd counterparts because [...]
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Archives of Metallurgy and Materials
EN The paper presents the results of structural and magnetic properties and thermal stability for a group of functional materials based on Fe61Co10Zr2.5Hf2.5Me2W2B20 (where Me = Mo, Nb, Ni or Y). Samples were obtained in the f[...]
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Electron Technology : Internet Journal
EN We report the galvanomagnetic properties of Hall and magnetoresistor cross-shaped sensors with lateral dimensions 2x3 mm. The comparative study of epilayers fabricated by MBE and MOCVD are presented. The measured parameters of these devices gave an interesting insight into their behaviour at tempera[...]
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Materials Science Poland
2013 Vol. 31, No. 4 581--586
EN Strontium hexaferrite thin films have been grown on glass substrates at room temperature in oxygen environment by pulsed laser deposition method. The effect of oxygen pressure (pO2) on the structural and magnetic properties has been investigated. The as-deposited films were found to be amorphous in [...]
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Materials Science Poland
2008 Vol. 26, No. 4 815--820
EN Correlations between magnetic properties and electronic structure of rare earth based intermetallics of the ZrNiAl-type crystal structure have been analysed. The analysis has been supported by results of magnetometric, neutron diffraction and photoelectron spectroscopy measurements. It has been demo[...]
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Materials Science Poland
2007 Vol. 25, No. 4 1281--1287
EN We report on magnetic properties of Co2CrAl thin films. Low-field magnetization measurements show that the films with the best B2/L21 structure exhibit ferromagnetic order below the Curie temperature TC ??330-340 K and below 200 K they exhibit magnetic characteristics suggesting the presence of anti[...]
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Materials Science Poland
2012 Vol. 30, No. 3 259--263
EN Highly-ordered ternary Fe-Co-Ni alloy nanowire arrays with diameters of about 50 nm have been fabricated by alternating current (AC) electrodeposition into the nanochannels of porous anodic aluminum oxide templates. SEM and TEM results indicate that the alloy nanowires are highly ordered. XRD and HR[...]
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Materials Science Poland
2011 Vol. 29, No. 3 165--170
EN The influence of pH and current density on the structural and magnetic behavior of soft magnetic Co-Ni-Fe alloy thin films has been studied. The effect of pH and current density on the compositional, structural, and magnetic properties of the as-obtained films was investigated by EDX (energy dispers[...]
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Materials Science Poland
2010 Vol. 28, No. 4 817--822
EN Magnetite (Fe3O4) nanoparticles were successfully synthesized via a simple solvothermal process and characterized by X-ray diffraction, field emission scanning electron microscopy, and physical property measurement system (PPMS). It was found that the diameters of as-synthesized Fe3O4 nanoparticles [...]
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Materials Science Poland
2009 Vol. 27, No. 2 529--537
EN Fine M-type hexagonal barium ferrite (M-Ba ferrite) powders were synthesized by a novel sugarbased process. The effects of synthesis variables such as the molar ratio of Fe/Ba, the calcination temperature and the pH value of the precursor solution on the phase component of the obtained powder and th[...]
12
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Materials Science Poland
2007 Vol. 25, No. 2 333--341
EN The negative magnetization for ternary and pseudoternary compounds with the tetragonal ThMn12 and rhombohedral Th2Zn17 type structure is presented considering various magnetic ordering types. This phenomenon has been observed in compounds of rare earth and uranium. Comparing pecularities of the temp[...]
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Materials Science Poland
2007 Vol. 25, No. 2 417--422
EN The influence of an ultrathin cobalt layer at permalloy/gold interfaces in Au/Ni80Fe20/Au sandwiches and spin-valve (Ni80Fe20/Au/Co/Au)N multilayers on their magnetic and magnetotransport properties is investigated. We show that an effective magnetic anisotropy of Co/Ni80Fe20/Co hybrid structures sa[...]
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Materials Science Poland
2007 Vol. 25, No. 2 327--332
EN Polycrystalline sample of the ternary Ce-based compound Ce5CuPb3 was prepared and characterized using room temperature powder X-ray, EDX analysis as well as by magnetic susceptibility, electrical resistivity, and thermoelectric power measurements. The compound crystallizes in the Ti5Ga4-type structu[...]
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Materials Science Poland
EN The electronic properties of multicomponent vanadate oxides M2InV3O11 (M(II) = Zn(II) and Co(II)) were investigated by electrical resistivity and electron paramagnetic resonance (EPR) measurements. Replacement of non-magnetic Zn(II) cations with magnetic Co(II) ions resulted in a significant drop in[...]
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Archives of Materials Science and Engineering
EN Purpose: The aim of this work was to obtain polyurethane matrix composite materials reinforced with Tb0.3Dy0.7Fe1.9 particles and to observe changes of magnetic properties and magnetostriction of samples with different particle size distributions of Tb0.3Dy0.7Fe1.9 powder and varying volume concentr[...]
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Przegląd Elektrotechniczny
2014 R. 90, nr 1 217--220
PL Do najważniejszych właściwości rdzeni magnetycznych, zaliczyć należy charakterystyki magnesowania (Bm = f(Hm), zmiany przenikalności względnej (μr = f(Hm) oraz poziom jednostkowych strat mocy (P = f(Bm)). Wysokie parametry użytkowe takich wyrobów jak transformatory pomiarowe stwarzają konieczność ko[...]
EN The most important properties of magnetic cores are the magnetisation characteristics (Bm = f(Hm), changes of magnetic permeability (μr = f(Hm) and specific total unit loss. High functional parameters of such products as measurements transformers create necessity of quality control their cores. In t[...]
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Journal of Achievements in Materials and Manufacturing Engineering
EN Purpose: The aim of the work is to investigate the structure and magnetic properties of the cobalt based hot pressed Co77Si11.5B11.5 powder obtained in high-energy ball milling process. Design/methodology/approach: The nanocrystalline ferromagnetic powders were manufactured by highenergy ball millin[...]
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Polish Journal of Chemistry
EN A novel one-dimensional chain with nickel(II) macrocyclic complex and extended terephthalato-bridged, namely, [Ni(L)(TPHA)]ź8H2O (1) (L = 1,3,6,9,11,14- hexaaza-tricyclo[12.2.1.16,9]octadecane, TPHA = terephthalate dianion) and a new binuclear Cu(II)-Ni(II) complex, [Cu(oxap)Ni(bpy)2](ClO4)2ź2H2O (2[...]
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Materials Science
EN The structure and magnetic properties of the tetragonal ThMn12 - type RMn12-xTx alloys (R=Nd, Sm; T=Co, Ni) have been studied in broad magnetic field ranges (up to 35 T). High pulsed magnetic field is applied at T = 4.2 K with the pulse duration of 10 ms. The NdMn12-xNix system has been investigated[...]
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