Abstract Enhanced magnetoelectric coupling is observed in bismuth ferrite samples, co-doped with non-magnetic Ba and magnetic Gd ions replacing Bi Fe, respectively. Distortion Fe–O octahedra has a significant effect on the properties of samples. Ferromagnetic signature found to increase significantly samples respect only-Gd-doped sample both at 80 300 K. The show enhanced electric polarization as well highest resistivity room temperature, which might be due reduction leakage current oxygen...

Here we report an easy and rapid synthesis technique of wurtzite ZnO nanostructures in the form flowers, nano-rods nano-tubes that are achieved by a facile hydrothermal method.

Arrays of single phase perovskite-type polycrystalline pure, Pr and Cr doped, Pr-Cr co-doped BiFeO3 (BFO) nanotubes (NTs) (∼50 nm wall thickness) have been synthesized using simple wet chemical liquid deposition template assisted technique. Spontaneous enhancement in the ferroelectricity, magnetoelectricity, ferromagnetic ordering are evidenced BFO NTs. Significant increase ferroelectric characteristics NTs suggests lower leakage current due to reduction oxygen vacancies structure. Strong...

We report the effect of variation diameter on optical, magnetic, and magnetodielectric properties Pr–Cr-codoped BiFeO3 (BFO) nanowires (NWs). BFO NWs with different diameters (18, 35, 55, 100, 150, 250 nm) have been fabricated by employing a simple wet chemical template-assisted route. The quantum confinement has found to significant influence room-temperature photoluminescence Raman spectra NWs. An interesting blue shift in band gap emission is observed as result confinement. position...

Abstract We report enhanced anomalous photovoltaic effects and switchable photovoltage generation in pure Pr–Cr co‐doped BiFeO 3 (BFO) nanotubes (NTs). Influence of metal doping on short circuit current, open voltage, power conversion efficiency fill factor are investigated. The BFO NTs (∼0.207%) is found to be by several orders magnitude comparison with the reported bulk effect. Pr‐doped provide highest values (∼0.5%). magnified image (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

This research article provides a pathway of controlled growth ZnO nano-rods, -flowers, -needles or -tubes without external chemical catalysis, via simple wet method by control synthesis temperature. Morphological effects on structural and optical properties are studied Ultraviolet-visible (UV-vis) spectroscopy shows slight enhancement in the band gap, with increasing Photoluminescence (PL) data indicates existence defect nanomaterials, which is more elaborately explained schematic diagram. A...

FeSiB based soft magnetic flakes (SMFs; ϕ: 63-106 µm, t: 2-5 µm) coated with optimally thick (∼10 nm) SiO2 were fabricated as the potential material for pressed cores suitable use in power inductors operating beyond 10 MHz. Such thin SMFs produced by mechanical ball milling of commercially available (∼27 ribbons followed an optimized sol-gel coating presence a silane coupling agent. Milling helped to reduce ribbon thickness below skin depth minimize eddy current loss at high frequencies. The...

We report broadband magnetic resonance in polycrystalline Sr2FeMoO6 measured over the wide temperature (T = 10-370 K) and frequency (f 2-18 GHz) ranges. was synthesized by sol-gel method found to be ferromagnetic below TC 325 K. A coplanar waveguide-based spectrometer used record electron spin (ESR) both sweep field modes. From mode at fixed dc fields, we obtain spectroscopic splitting factor g ∼ 2.02 for T ≥ K, which confirms 3+ ionic state of Fe material. The effective value decrease...

We report the magnetization (M), magnetostriction, electrical resistivity (ρ), thermal conductivity (κ) and thermopower (S) of polycrystalline La0.9Na0.1MnO3 over a wide temperature range 5 to 360 K. This sample undergoes paramagnetic ferromagnetic transition around T C = 274 K ρ shows an insulator-metal IM 292 The sign S is positive in entire which indicates that majority charge carriers are holes. Thermopower exhibits peak dip at absence magnetic field. Large difference between...

Quantum Dot Cellular Automata (QCA) is advancing as an expectant and ongoing nanotechnology that relies on the behavior of electrons interacting with each other in a quantum cell where single acts like molecule. This emergent technology promises to deal limitations CMOS offering very low power operation high speed. paper presents efficient 3:8 decoder using multilayer crossover technique successfully implemented by QCA. The proposed more fault tolerant, having performance zero crosstalk due...

Single crystals of high-quality CaFe2O4 have been grown successfully using a self-adjusted traveling solvent floating zone method with four-mirror optical furnace in oxygen atmosphere. Although has reported to melt incongruently, the optimal molten achieved through cooling following liquidus line directly stoichiometric as both feed and flux rods beginning. Details regarding long-term stability lamp power optimization obtain bubble-free are discussed. The obtained large single crystal few...

We compare the impact of hydrostatic pressure on magnetic and magnetocaloric properties in monovalent alkali earth ion-doped polycrystalline La1–xNaxMnO3 (x = 0.05, 0.10). X-ray absorption spectra Mn L3,2 edges reveal presence Mn4+ these doped ferromagnetic samples. Ferromagnetic Curie temperature (TC) obtained from dependence magnetization is 249.7 K for x 0.05 269.6 0.1 samples ambient pressure. A field change 3T causes an adiabatic ΔTad 2.8 2.0 0.1, respectively, at their respective TCs....

We successfully synthesized Bi <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1-x</sub> Ba xmlns:xlink="http://www.w3.org/1999/xlink">x</sub> FeO xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> ( <i xmlns:xlink="http://www.w3.org/1999/xlink">x</i> = 0.0, 0.20, 0.25) replacing by using a chemical synthesis route. The phase and crystal structure of the samples were studied X-ray diffraction (XRD). Peaks in XRD shifted toward lower θ value with...

${\mathrm{CaFe}}_{2}{\mathrm{O}}_{4}$ possesses an intriguing crystal structure characterized by the presence of ${\mathrm{FeO}}_{6}$ octahedra that share both edges and corners, featuring zigzag Fe chains are assembled in a honeycomb tube network. The nominal has been identified to show long-range antiferromagnetic spin ordering N\'eel temperature ${T}_{N}\phantom{\rule{4pt}{0ex}}\ensuremath{\sim}184$ K. From dc ac magnetic susceptibility measurements on polycrystalline single-crystal...

We report the anomalous Nernst effect (ANE) in bulk La1-xNaxMnO3 (x = 0.02, 0.05, 0.1, and 0.3) samples whose ferromagnetic Curie temperature (TC) is tunable from 251 K to 310 K. The ANE voltage abruptly increases at TC decreases for T &amp;lt; TC. maximum value of achieved x which shows highest magnetization series. dependent (T TC) analyzed with help dc resistivity longitudinal thermopower data using Mott’s relation, it found that dominated by skew scattering.

We report the direct current (dc) magnetoresistance and microwave (MWMR) as a function of frequency (f = 0.5–3 GHz), along with absorption 0.01–4.2 GHz) in Sr2FeMoO6 (SFMO) synthesized by wet chemical method. Magnetization data indicates that onset temperature ferromagnetism this sample is above 400 K. The resistivity SFMO shows semiconducting behavior under dc magnetic fields H 0 30 kOe. MWMR highly resistive determined coating layer silver paint on upper surface to guide (MW) signal...

Understanding of magnetocrystalline anisotropy in CaFe2O4 is a matter importance for its future applications. A high quality single crystal sample studied by using synchrotron x-ray diffraction, magnetometer and the electron spin resonance (ESR) technique. broad feature susceptibility curve around room temperature observed, indicating development 1D interactions above on-set antiferromagnetic transition. The angular dependency ESR reveals an in-plane two-fold symmetry, suggesting strong...

This article presents optimized CoZrTaB-based laminated thin films with a wet etch-able oxide dielectric material. Wet etching capability was studied on the stack material and narrow clean undercut achieved. Good uniaxial anisotropy low coercivity (< 1 Oe) achieved via in situ magnetic alignment during magnetron sputtering. The relative permeability of 432 <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$Q$...

We report the magnetic field (−2.5 kOe ≤ Hdc 2.5 kOe) dependence of ac magnetoresistance (ac MR) and magnetoreactance (MX) in bulk samples La0.6Sr0.4Mn1−xGaxO3 (0 x 0.3) carrying radio frequency current (f = 10 MHz–3 GHz) at 300 K. Samples with 0.10 are ferromagnetic (FM) those ≥ 0.2 paramagnetic (PM) While MR FM is negative shows a single sharp peak 0 low frequencies, positive double peaks emerge ±Hp for f &amp;gt; 500 MHz, they shift toward higher increasing f. The larger (∼75% Hp 800 Oe...