Microstructural, Optical, and Magnetic Properties of Vanadium-Substituted Nickel Spinel Nanoferrites
- Istanbul Medeniyet University, Department of Chemistry (Turkey)
- RWTH Aachen University, Institute of Inorganic Chemistry (Germany)
- Hitit University, Department of Physics (Turkey)
- Indian Institute of Technology Delhi, Instrument Design and Development Centre (IDDC) (India)
- Bharath University, Department of Chemistry, Bharath Institute of Higher Education and Research (BIHER) (India)
- Imam Abdulrahman Bin Faisal University, Department of Nano-Medicine Research, Institute for Research and Medical Consultations (IRMC) (Saudi Arabia)
The current study investigates the impact of vanadium substitution on the structural, magnetic, and optical properties of NiFe{sub 2−x}V{sub x}O{sub 4} (x ≤ 0.3) nanoparticles (NPs) produced by the cost-effective sol-gel route. The as-prepared spinel ceramic powders were examined by X-ray diffraction (XRD), UV-visible diffuse reflectance spectroscopy (DRS), Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), and vibrating sample magnetometry (VSM). The functional groups, spinel phase, and crystal structure were confirmed by XRD and FT-IR, respectively. The crystallites size decreased from 45.24 to 36.56 nm as the doping process increases. The plots of Tauc were drawn to determine optical band gap magnitudes of 1.291, 1.302, and 1.312 eV for x = 0.0, 0.2, and 0.3, respectively. The estimated saturation magnetization is maximum for pristine NiFe{sub 2}O{sub 4} NPs and decreases to minimum for NiFe{sub 1.7}V{sub 0.3}O{sub 4} NPs. The σ-H hysteresis loops have finite coercivity (between 125 and 169 Oe) and retentivity (between 9.36 and 14.04 emu/g) values. The calculated σ{sub r}/σ{sub s} ratios are lower than 0.500, assigning the uniaxial anisotropy for NiFe{sub 2−x}V{sub x}O{sub 4}. The effective anisotropy constants (K{sub eff}) are in the range of 0.824 × 10{sup 5} and 1.303 × 10{sup 5} Erg/g. The magnetocrystalline anisotropy field (H{sub a}) values are around 5.0 kOe. The characteristics of hysteresis (σ-H) curves and the order of magnetic data reveal the soft ferrimagnetic feature of as-prepared nanoparticle samples. From Mossbauer analysis, the variations in hyperfine magnetic field, quadrupole splitting, line width, and isomer shift have been evaluated. The distribution of cations showed that the octahedral B sites are occupied by all the ions of V{sup 3+}. Mossbauer spectra are composed of four Zeeman sextets and one doublet.
- OSTI ID:
- 22921321
- Journal Information:
- Journal of Superconductivity and Novel Magnetism, Vol. 32, Issue 4; Other Information: Copyright (c) 2019 Springer Science+Business Media, LLC, part of Springer Nature; Country of input: International Atomic Energy Agency (IAEA); ISSN 1557-1939
- Country of Publication:
- United States
- Language:
- English
Similar Records
Enhanced Magneto-optical and Photocatalytic Properties of Ferromagnetic Mg{sub 1−y}Ni{sub y}Fe{sub 2}O{sub 4} (0.0 ≤ y ≤ 1.0) Spinel Nano-ferrites
Nanocrystalline spinel ferrite (MFe{sub 2}O{sub 4}, M = Ni, Co, Mn, Mg, Zn) powders prepared by a simple aloe vera plant-extracted solution hydrothermal route
Related Subjects
CERAMICS
COERCIVE FORCE
CRYSTAL STRUCTURE
FERRITES
INFRARED SPECTRA
ISOMER SHIFT
MAGNETIC FIELDS
MAGNETIC PROPERTIES
MAGNETIZATION
MICROSTRUCTURE
MOESSBAUER EFFECT
NANOPARTICLES
NICKEL COMPOUNDS
OPTICAL PROPERTIES
SCANNING ELECTRON MICROSCOPY
SPECTROSCOPY
VANADIUM ADDITIONS
VIBRATING SAMPLE MAGNETOMETERS
X-RAY DIFFRACTION
ZEEMAN EFFECT