![]() ![]() It is proposed that not only the parallel magnetic domains to external magnetic field but also the non-parallel magnetic domains effectively contribute to the total magnetostriction. The highest SME effect is observed when all magnetic tip masses are loaded on the Metglas layer and their magnetization directions are normal to the Metglas surface. An asymmetric laminate structure consisting of two different magnetostrictive layers (Metglas and nickel) with opposite signs of piezomagnetic coefficient is introduced to promote structural bending resonance, and the effect of layout change of attaching the magnetic tip masses on SME responses is systematically investigated. ![]() In this study, it is demonstrated that the giant self-biased magnetoelectric (SME) response can be achieved from a center-clamped magnetostrictive–piezoelectric laminate composite by employing magnetic tip masses. The magnetization measurement indicates soft magnetic behaviour. 1.27% of initial weight) from RT to 1273 K. ![]() Thermal analysis shows phase change around 625 K with minimum weight loss (i.e. The activation energy obtained from dc conductivity using Arrhenius relation σ = σoexp(−Ea/kT) is 2.12 eV. The material shows high dielectric constant value (750) at RT. The frequency- and temperature-dependent dielectric constant has been measured. The three-dimensional surface morphology has been investigated using atomic force microscopy (AFM), and the average roughness measured in the sampling area of 100.07 µm² is around 142 nm. The average grain size obtained from the SEM micrograph is around 2 µm. The refined lattice parameters obtained by Rietveld analysis are: a = 5.5907 Å, b = 7.6082 Å and c = 5.2849 Å with orthorhombic symmetry in space group Pnma. ![]() The formation of the compound has been confirmed by the room temperature (RT) X-ray diffraction analysis. The polycrystalline ceramic sample of YFeO3 has been synthesized by high-temperature solid-state reaction method using high-purity oxides. Our results show that the addition of Mn exhibits an evident influent on the local structural and magnetic properties. From the magnetic study, it is observed that the substitution of Y ions by Mn ions changes the magnetic property of YFeO 3 from ferromagnetic to paramagnetic. IR spectra reveal the characteristic vibrations of the obtained YFM x O samples. The Fe and Y K -edge local structure studies indicate that the valency of Fe and Y is mainly found in trivalent state, which also indicate that substitution of Mn ions not only affects the nearest neighbor atomic shell of Fe but also affects the nearest neighbor’s local structure of Y atoms. Morphology images show the shape evolution from layered to multilayered with increasing Mn content. Refined structure parameters are presented. The experimental results show that Mn dopants occupy Iron (Fe) sites and that all these samples exhibit an orthorhombic structure with space group Pnma. , YFM x O powders with 0 ≤ x ≤ 0.1 were synthesized by hydrothermal method to study the influences of doping on their structural, morphological, local electrical, optical and magnetic properties. In this work, Manganese (Mn) doped YFeO 3, i.e. And it is important to determine the doping sites of the dopants to better understanding the related mechanism. Doping is one of the effective approaches to tune the compound properties. A gradual increase in the coercivity and saturation magnetization ( M s) were noted at relatively higher cobalt doping fractions.Yttrium orthoferrite (YFeO 3 ) is of considerable interest for its potential application in magnetic field sensors and magneto optical data storage devices. Broad visible emissions are observed in the photoluminescence spectra. Was found to decrease with an increase in cobalt content (1.87 to 1.62 eV). The HR-SEM images showed nanoparticles are agglomerated. The lattice parameters decreased as cobalt fraction was increased. The formation of zinc ferrites normal spinel-type structure with an average crystallite sizes in the range, 25.69 nm to 35.68 nm. Vibrating sample magnetometry at room temperature was recorded to study the magnetic behavior of the samples. The prepared samples were characterized by various instrumental techniques such as X-ray powder diffractometry, high resolution scanning electron microscopy (HR-SEM), energyĭispersive X-ray analysis, Fourier transformed infrared (FT-IR) spectroscopy, photoluminescence spectroscopy and UV-Visible diffuse reflectance spectroscopy. Pure and cobalt doped zinc ferrites were prepared by microwave combustion method using L-arginine as a fuel. ![]()
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