Open AccessExploration through Structural, Electrical, and Magnetic Properties of Al3+ Doped Ni–Zn–Co Nanospinel Ferrites
Author(s) -
Nusrat Jahan,
Nazrul Islam Khan,
Jahirul Islam Khandaker
Publication year - 2021
Publication title -
acs omega
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.779
H-Index - 40
ISSN - 2470-1343
DOI - 10.1021/acsomega.1c04832
Subject(s) - raman spectroscopy , materials science , lattice constant , analytical chemistry (journal) , dielectric , selected area diffraction , rietveld refinement , electrical resistivity and conductivity , diffraction , doping , spinel , saturation (graph theory) , nickel , crystal structure , crystallography , chemistry , nanotechnology , transmission electron microscopy , metallurgy , physics , optics , optoelectronics , mathematics , chromatography , quantum mechanics , combinatorics
The exploration of aluminum (Al 3+ ) ion substituted nickel-zinc-cobalt (Ni-Zn-Co) nanoferrites is still at the infancy stage, although the structural, electrical, and magnetic properties have been widely investigated. Single-phase cubic nanospinel ferrites of Ni 0.4 Zn 0.35 Co 0.25 Fe 2- x Al x O 4 (0 ≤ x ≤ 0.12) with space group Fd 3 m were confirmed by the Rietveld refinement X-ray diffraction (XRD) data. Lattice constants displayed a declining trend with compositions x . The average particle size was found to range from 29 to 25 nm. Selected area electron diffraction (SAED) patterns were indexed according to space group Fd 3 m , indicating that nanoparticles are well crystallized. Samples' modes of vibrations swung between redshift and blueshifts as detected in the Raman spectra. The saturation magnetizations ( M s ) were in the range of 59.85-86.39 emu/g. Frequency-dependent dielectric constants (ε') and ac resistivity (ρ) measurement suggested that samples were highly resistive. These resistive nanoferrites with high saturation magnetizations may function effectively for multifaceted electronic devices.