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- Title
Investigation of cationic distribution, Y–K angles, and optical and dielectric properties of as-synthesized cerium-doped cobalt nano-ferrites prepared by co-precipitation method.
- Authors
Anjum, Safia; Zeeshan, Talat; Ali, Muhammad Danish; Waseem, Salma; Waseem, Iqra; Mustafa, Zeeshan
- Abstract
Spinel ferrites nano-particles are broadly premeditated due to their applications in wide range of technologies like high-density magnetic data storage, magnetic fluids, microwave devices, electrical generators, telecommunication equipment, and gas sensors. Cerium-doped Co-spinel nano-ferrites CoCe x Fe 2 - x O 4 were synthesized with variation of dopant concentration (x = 0.0, 0.02, 0.04, 0.06, 0.08 and 0.1) using co-precipitation technique. The as-fabricated samples have been characterized using X-ray Diffractometer (XRD), Fourier Transform Infrared Radiation (FTIR), UV–Visible Spectrometer (UV–Vis), Vibrating Sample Magnetometer (VSM), and LCR meter. Structural analysis revealed the formation of cubic spinel structure along with presence of secondary phases of CeO2 as introduction of cerium into the host. UV–Vis spectroscopy has been used to find out the direct band-gap energies of as-fabricated samples. Although, the as-fabricated pure and doped cobalt ferrite samples have low values of saturation magnetization and coercivity, but still they are ferromagnetic in nature. The variation of dielectric constant, tangent loss, and A.C conductivity with frequency and cerium concentration has been observed. The Dielectric Constant and tangent loss decrease with increasing frequency for all the samples.
- Subjects
DIELECTRIC properties; FERRITES; OPTICAL properties; MAGNETIC fluids; DIELECTRIC loss; TELECOMMUNICATION equipment
- Publication
Applied Physics A: Materials Science & Processing, 2022, Vol 128, Issue 5, p1
- ISSN
0947-8396
- Publication type
Article
- DOI
10.1007/s00339-022-05470-8