| Journal: | Revista mexicana de física |
| Database: | PERIÓDICA |
| System number: | 000447218 |
| ISSN: | 0035-001X |
| Authors: | Hussain, A1 Tahir, S. Akbar2 Ahmad, N1 Hashim, M1 Ziya, A. Bashir3 Noreen, S1 |
| Institutions: | 1Khawaja Fareed University of Engineering and Information Technology, Department of Physics, Rahim Yar Khan. Pakistán 2Government College University Faisalabad, Faisalabad. Pakistán 3Bahauddin Zakariya University, Multan. Pakistán |
| Year: | 2021 |
| Season: | May-Jun |
| Volumen: | 67 |
| Number: | 3 |
| Pages: | 527-535 |
| Country: | México |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico, teórico |
| English abstract | A low-temperature synthesis of novel nanostructured CoxNi1-xMn0.5Fe1.5O4 (x = 0,0.25,0.5,0.75,1) ferrites was carried out by sol-gel auto-combustion technique. The obtained nanostructured ferrites were investigated by employing the techniques of powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), and vibrating sample magnetometry (VSM). The XRD diffractograms of the prepared ferrites revealed the formation of a spinel phase with face-centered cubic (fcc) structure belonging to the Fd- 3 ¯ m space group. The average lattice parameter ‘a’ of ferrites exhibited a rise versus a rise in CO2+ concentration following Vegard’s law. The SEM investigation of NiMn0.5Fe1.5O4 powder revealed the existence of octahedral-shaped morphology of ferrite grains. The TEM investigation of NiMn0.5Fe1.5O4 powder showed nanostructures of ferrite particles with sizes consistent with the crystallite sizes as estimated by Debye-Scherer’s formula. An EDX spectrum of NiMn0.5Fe1.5O4 powder confirmed its elemental composition. The M-H hysteresis loops recorded by VSM at room temperature revealed a dependence of coercivity (Hc), maximum magnetization (Mmax), and retentivity (Mr) on CO2+ concentration. The shape dependence of M-H loops on CO2+ concentration in compounds enabled their candidature for applications in memory devices and magnetic sensors |
| Disciplines: | Física y astronomía |
| Keyword: | Física, Técnica sol-gel, Estructura de espinela, Difracción de rayos X, Microscopía electrónica de barrido, Coercitividad, Remanencia |
| Keyword: | Physics, Sol-gel technique, Spinel structure, X-ray diffraction, Scanning electron microscopy, Coercivity, Remanence |
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