Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 485, Issue -, Pages 105-111Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2019.04.074
Keywords
Nanoferrites; Saturation magnetization; Coercivity; Dielectric property
Funding
- Science and Engineering Research Board, New Delhi, India [SR/FTP/PS-068/2014]
- Department of Information Technology (DeitY), the Ministry of Communications and Information Technology (MCIT), Govt. of India [P1375255612]
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Polyvinyl alcohol (PVA)-blended spinel phase NiNdxFe2-xO4 nanoferrites were successfully prepared with a different composition (x = 0.01, 0.03, 0.05, 0.07, and 0.09). The spinel cubic structure was revealed from X-ray diffraction pattern. These nanoferrites showed insulating behavior with an enhanced energy bandgap when compared with PVA-unblended nanoferrites. The obtained dielectric loss and real and complex dielectric constants were in the microwave region (frequency similar to 2.9-5.95 GHz). Pseudocapacitance and resistive behavior were explored from impedance analysis. The magnetization hysteresis plot of nanoferrites showed a soft ferromagnetic nature. It was found that reduction in saturation magnetization of NiNdxFe2-xO4 nanoferrites obtained by PVA doping has the strong microwave absorption capacity.
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