“…Also, few band sites were observed at 1632.5 & 2109.5 cm −1 and 3358.2 & 1338.6 cm −1 . These sites were developed due to vibrational stretching which were appropriate to the contortion of water molecules and O–H bonds 25 – 27 . Figure 6 FTIR spectra of SLFO nanoparticles.…”
The current work is mainly devoted to the synthesis, structural, electrical, and magnetic characterization of Sr1−XLaXFe12O19 (X = 0.2–0.8) (SLFO) nanoparticles synthesized via the hydrothermal technique. The hexagonal peaks were determined using X-ray diffraction analysis. The obtained results indicated that the lattice constants were noted to be increasing from 0.58801 to 0.58825 nm (a = b), and 2.30309 to 2.30341 nm (c) with increase of in ‘X’. The morphological studies ensured that the grains as well as nanoparticles of SLFO acquired almost spherical shape. The optical properties were investigated using FTIR and UV–Visible spectra. The optical bandgap (Eg) of SLFO was found to be increasing from 1.866 to 2.118 eV with increase of dopant content. The electrical properties of SLFO were studied in detail as a function of temperature, and frequency. In addition, the dielectric modulus, and impedance spectroscopy analysis was carried out to describe the space charge polarization, and electric conduction mechanism, respectively. The hysteresis loop (M–H curves) of SLFO revealed the decrease of magnetization from 36.34 to 7.17 emu/g with increase in ‘X’.
“…Also, few band sites were observed at 1632.5 & 2109.5 cm −1 and 3358.2 & 1338.6 cm −1 . These sites were developed due to vibrational stretching which were appropriate to the contortion of water molecules and O–H bonds 25 – 27 . Figure 6 FTIR spectra of SLFO nanoparticles.…”
The current work is mainly devoted to the synthesis, structural, electrical, and magnetic characterization of Sr1−XLaXFe12O19 (X = 0.2–0.8) (SLFO) nanoparticles synthesized via the hydrothermal technique. The hexagonal peaks were determined using X-ray diffraction analysis. The obtained results indicated that the lattice constants were noted to be increasing from 0.58801 to 0.58825 nm (a = b), and 2.30309 to 2.30341 nm (c) with increase of in ‘X’. The morphological studies ensured that the grains as well as nanoparticles of SLFO acquired almost spherical shape. The optical properties were investigated using FTIR and UV–Visible spectra. The optical bandgap (Eg) of SLFO was found to be increasing from 1.866 to 2.118 eV with increase of dopant content. The electrical properties of SLFO were studied in detail as a function of temperature, and frequency. In addition, the dielectric modulus, and impedance spectroscopy analysis was carried out to describe the space charge polarization, and electric conduction mechanism, respectively. The hysteresis loop (M–H curves) of SLFO revealed the decrease of magnetization from 36.34 to 7.17 emu/g with increase in ‘X’.
“…Also, it was observed few band-sites at 1632.5 & 2109.5cm -1 and 3358.2 &1338.6cm -1 . These sites were developed due to vibrational stretching which were appropriate for contortion of water molecules and O-H bonds [25][26][27].…”
Section: Optical Propertiesmentioning
confidence: 99%
“…Furthermore, (αhυ) n vs hυ plots (where 'α' is absorptivity, and 'hυ' is the photon energy) were drawn to obtain the optical energy band gap (E g ) of as prepared samples by considering n=2. Because, n=2 allows the direct-transition of charge-carriers between the energy-bands [25][26][27]. Therefore, as shown in Fig.…”
The current work mainly focused on the synthesis, structural, electrical, and magnetic characterization of Sr1 − XLaXFe12O19 (X = 0.2–0.8) (SLFO) nanoparticles synthesized via the hydrothermal reaction technique. The hexagonal crystalline planes were determined using X-ray diffraction analysis. The obtained results indicated that the lattice constants were noted to be increasing from 0.58801 to 0.58825 nm (a = b), and 2.30309 to 2.30341 nm (c) with increase of ‘X’. The morphological studies ensured that the grains as well as nanoparticles of SLFO acquired almost spherical shape. The optical properties were investigated using FTIR and UV-Visible spectra. The optical bandgap (Eg) of SLFO was found to be increasing from 1.866–2.118 eV with dopant content. The electrical properties of SLFO were studied in detail as a function of temperature, and frequency. In addition, the dielectric modulus, and impedance spectroscopy analysis was carried out to describe the space charge polarization, and electric conduction mechanism respectively. The hysteresis loop (M-H curves) of SLFO revealed the decrease of magnetization from 36.34–7.17 emu/g with ‘X’.
“…However, it is known that the electrical, optical and magnetic properties of ferrites are very sensitive to the particle sizes, shape and degree of crystallinity. At present, tremendous efforts have been made to achieve highly homogeneous nano-particles of barium hexaferrite by using different synthesis methods [4]. Among all synthesis methods, Sol-gel combustion techniques show advantages mainly due to low cost, ability to produce multicomponent oxides with single phase and invariably in the nanometer range.…”
The BaCuxFe12-xO19 and BaAlxFe12-xO19 (x = 0.0, 0.4, 0.8, 1.2) materials were prepared via sol-gel auto combustion technique. Further, the X-ray diffraction patterns suggested the formation of single phase hexagonal structure. This work is aimed to study the effect of diamagnetic and paramagnetic elements on magnetic characteristics of BaFe12O19. The results established that in the case of diamagnetic (Cu) substitution, the saturation magnetization was increased and decreased alternatively. Furthermore, it was noticed that the coercivity values of all doped samples were lower than those of undoped samples. But the replacement of Fe3+ with paramagnetic (Al) element led to a decrease in saturation magnetization and to a significant increase in the coercive field.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
