Enhancement in magnetic and electrical properties of Ni substituted Mg ferrite

• Autorzy: Ramarao K. , Rajesh Babu B. , Kishore Babu B. , Veeraiah V. , Rajasekhar K. , Ranjith Kumar B. , Swarna Latha B.

Identyfikatory

DOI

10.2478/msp-2018-0065

• Języki publikacji: EN

Abstrakty

EN

In this work, Ni substituted magnesium spinel ferrites having general formula Mg_1−xNi_xFe₂O₄(where x = 0.0, 0.1, 0.15, 0.2, 0.25 and 0.3) were synthesized by standard solid state reaction method. All the samples were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), vibrating sample magnetometer (VSM), DC resistivity measurements. X-ray diffraction analysis confirmed the single spinel phase. The lattice constant decreased with increasing Ni content due to the difference in the ionic radii of Mg²⁺and Ni²⁺ ions. The FT-IR spectra reveled two prominent frequency bands in the wave number range of 400 cm⁻¹ to 600 cm⁻¹, which confirmed the cubic spinel structure of obtained compound and completion of chemical reaction. Magnetic studies revealed that the saturation magnetization increased with the substitution of Ni. The increase in magnetization was explained on the basis of distribution of magnetic and non-magnetic cations among A and B sites of the spinel lattice. A significant influence of cation distribution on DC electrical resistivity and activation energy was observed.

Słowa kluczowe

EN

Mg-Ni ferrite; solid state reaction; XRD; VSM; FE-SEM

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2018
• Tom: Vol. 36, No. 4
• Strony: 644--654
• Opis fizyczny: Bibliogr. 27 poz., rys., tab.

Twórcy

autor

Ramarao K.

• Department of Physics, Andhra University, Visakhapatnam, 530003, A.P., India

autor

Rajesh Babu B.

• Department of Physics, G.V.P. College of Engineering for Women, Visakhapatnam, 530048, A.P., India

autor

Kishore Babu B.

• Department of Engineering Chemistry, AU College of Engineering, Visakhapatnam, 530003 A.P., India

autor

Veeraiah V.

• Department of Physics, Andhra University, Visakhapatnam, 530003, A.P., India

autor

Rajasekhar K.

• Department of Physics, Andhra University, Visakhapatnam, 530003, A.P., India

autor

Ranjith Kumar B.

• Advanced Functional Materials Research Centre, Department of Physics, KL University, Guntur, A.P., India

autor

Swarna Latha B.

• Department of Physics, Andhra University, Visakhapatnam, 530003, A.P., India

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).