نتایج جستجو برای: hexaferrite
تعداد نتایج: 389 فیلتر نتایج به سال:
This paper demonstrates an electric-field tuning of the ferromagnetic resonance FMR responses at millimeter wave frequencies for a monolithic magneto-electric heterostructure. The layered stack is comprised of c-axis oriented and low loss barium hexaferrite BaM and 111 oriented ferroelectric barium strontium titanate BSTO layers along with embedded platinum electrode layers, all fabricated by p...
Magnetic property is one of the important properties of nanomaterials. Direct investigation of the magnetic property on the nanoscale is however challenging. Herein we present a quantitative measurement of the magnetic properties including the magnitude and the orientation of the magnetic moment of strontium hexaferrite (SrFe12O19) nanostructures using magnetic force microscopy (MFM) with nanos...
BaFe12-xCrxO19 (x = 0.0, 0.1, 0.2, 0.3, and 0.4) ferrite ceramics were prepared by a sol-gel method using spruce sapwoods as the templates. The prepared materials were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and a magnetic property measurement system (MPMS). The prepared materials maintained a multilayer wall structure of spruce sapwoods. All samples presen...
CoY hexaferrite-filled PEEK (poly ethyl ether ketone) compositeswere synthesized to characterize the effect of hexaferrites on their dielectric, magnetic and thermal properties for wireless sensing and communication applications. Fillers were synthesized from solid-state reaction route and blendedwith the thermoplastic polymermatrix.XRDwas used to study the phase purity of the synthesised fille...
The dielectric properties of Z-type hexaferrite Sr3Co2Fe24O41 (SCFO) have been investigated as a function of temperature from 153 to 503 K between 1 and 2 GHz. The dielectric responses of SCFO are found to be frequency dependent and thermally activated. The relaxation-type dielectric behavior is observed to be dominating in the low frequency region and resonance-type dielectric behavior is foun...
Barium hexaferrite (BaHF) with the chemical formula BaFe12O19 is a hard magnetic material and has high magnetic anisotropy field (MAF), 17 kOe. The easy direction of magnetization corresponds to the crystallographic c-axis and BaHF particles orient in this direction when are exposed to an external magnetic field. Because of the high MAF, a ferromagnetic resonant frequency appears from 45 to 50 ...
Many studies have been conducted on Spinel, Garnet, and Hexa-ferrites in single multi-doped concentrations. This article is an attempt to review the researcher's work Ca, Ba, Sr hexaferrite by substituting a variety of various ions such as Al, La, Sn, Zr, Co, Cr, Ir. paper investigates M-type (Ca, Sr, Ba) with space group P63/mmc that were synthesized using techniques characterized XRD for crys...
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