Structural and electrical studies of aluminium-doped nickel-cobalt ferrite nanoparticles
Joint Authors
Waghmare, S. P.
Borikar, D. M.
Borikar, M. A.
Rewatkar, K. G.
Source
Issue
Vol. 15, Issue 1 (31 Mar. 2022), pp.29-36, 8 p.
Publisher
Yarmouk University Deanship of Research and Graduate Studies
Publication Date
2022-03-31
Country of Publication
Jordan
No. of Pages
8
Main Subjects
Abstract EN
Aluminium-doped Nickel-Cobalt ferrite nanoparticles with general formula Ni0.5Co0.5AlxFe2-xO4 (x = 0 and x = 0.5) were synthesized by microwave-assisted sol-gel auto-combustion method.
The X-ray diffraction analysis of the samples confirms single phase with cubic spinel structure belonging to space group Fd3m.
The average crystallite size calculated using Debey-Scherrer formula was found to be in the range of 19-36 nm.
XRD studies revealed that the lattice parameter (a), the particle size (D) and X-ray density (dx) decrease, whereas porosity increases with Al substitution.
Energy Dispersive X-ray (EDX) was used to confirm the elemental composition of synthesized powders.
TEM micrograph suggests that the particle size is in nanometric range, which confirms the nanocrystalline nature of the samples.
The electrical resistivity and dielectric constant have been studied as functions of temperature.
It was observed that the electrical resistivity decreases with increasing temperature, exhibiting the semiconducting nature of the sample.
The dielectric constant increases with increase in temperature up to transition temperature and then decreases, which is explained on the basis of hopping mechanism.
American Psychological Association (APA)
Waghmare, S. P.& Borikar, D. M.& Borikar, M. A.& Rewatkar, K. G.. 2022. Structural and electrical studies of aluminium-doped nickel-cobalt ferrite nanoparticles. Jordan Journal of Physics،Vol. 15, no. 1, pp.29-36.
https://search.emarefa.net/detail/BIM-1560033
Modern Language Association (MLA)
Waghmare, S. P.…[et al.]. Structural and electrical studies of aluminium-doped nickel-cobalt ferrite nanoparticles. Jordan Journal of Physics Vol. 15, no. 1 (Mar. 2022), pp.29-36.
https://search.emarefa.net/detail/BIM-1560033
American Medical Association (AMA)
Waghmare, S. P.& Borikar, D. M.& Borikar, M. A.& Rewatkar, K. G.. Structural and electrical studies of aluminium-doped nickel-cobalt ferrite nanoparticles. Jordan Journal of Physics. 2022. Vol. 15, no. 1, pp.29-36.
https://search.emarefa.net/detail/BIM-1560033
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 35-36
Record ID
BIM-1560033