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| Content Provider | IET Digital Library |
|---|---|
| Author | Kaur, Navjot Chudasama, Bhupendra |
| Abstract | Mn1−xZnxFe2O4 nanoparticles (MZ NPs) owing to their Zn content dependent tunable magnetic properties have potential applications in energy conversion devices and in nanomedicine. It is a well-recognised fact that magnetism of MZ NPs has critical dependence on degree of Zn substitution at tetrahedral sites. In addition, the role of cation distribution between the tetrahedral and octahedral sites for a particular degree of Zn-substitution, i.e. the degree of inversion (δ) also influences their magnetic characteristics. However, the exact correlation between distribution of bivalent metal ions between tetrahedral and octahedral sites and corresponding magnetic characteristics is not well understood. In order to explore this structural dependence of magnetic characteristics of MZ NPs, a series of Mn1−x Zn x Fe2O4 (x = 0−1) nanoparticles have been synthesized by chemical co-precipitation method. Saturation magnetisation and Curie temperature of MZ NPs are strongly correlated with the degree of inversion and exchange interactions between the magnetic ions, while the coercivity and remanence is independent of it and only depends on crystallite size. Both saturation magnetisation and Curie temperature decreases with increasing Zn substitution into spinel matrix. This could be attributed to the weakening of strong (A-B) inter lattice super exchange interaction instead partial substitution of Zn at octahedral Mn sites. |
| Starting Page | 151 |
| Ending Page | 156 |
| Page Count | 6 |
| Volume Number | 12 |
| e-ISSN | 17500443 |
| Issue Number | Issue 3, Mar (2017) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/mnl/12/3 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/mnl.2016.0555 |
| Journal | Micro & Nano Letters |
| Publisher Date | 2017-03-01 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Amorphous And Nanostructured Magnetic Materials Barkhausen Chemical Co-precipitation Method Coercive Force Coercivity Crystallisation Crystallite Size Crystallites Curie Temperature Energy Conversion Device Exchange And Superexchange Interactions in Magnetically Ordered Material Ferrimagnetics Ferrites Fine-particle Magnetic System Hysteresi Inter-lattice Super-exchange Interaction Magnetic Ions Magnetic Particle Magnetic Phase Boundaries Magnetic Property of Nanostructure Magnetism Magnetization Curves Manganese Compound Microstructure Mixed Spinel Structure Mn1−xZnxFe2O4 Nanofabrication Nanomagnetics Nanoparticle Nanotube And Nanostructured Material Octahedral Manganese Site Physical Chemistry Precipitation Remanence Saturation Magnetisation Spinel Matrix Structural Dependence Structure Induced Tunable Magnetic Property Structure of Solid Clusters Superexchange Interactions Tetrahedral Site Transmission Electron Microscopy Vibrating Sample Magnetometer X-Ray Diffraction Zinc Compound |
| Content Type | Text |
| Resource Type | Article |
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