Superparamagnetic behavior of nanosized ZnFe 2 O 4
| Autor: | Sangam Banerjee, R. Mondal, S. B. Majumder, Asok Poddar, Sanjay Kumar, Papri Dasgupta, S. Dey |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Coprecipitation Spinel Analytical chemistry Oxide 02 engineering and technology engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound chemistry engineering 0210 nano-technology High-resolution transmission electron microscopy Saturation (magnetic) Hyperfine structure Powder diffraction Superparamagnetism |
| Zdroj: | Materials Today: Proceedings. 5:9855-9859 |
| ISSN: | 2214-7853 |
| DOI: | 10.1016/j.matpr.2017.10.177 |
| Popis: | Herein, we have reported the structural, microstructural, magnetic and hyperfine properties of nanosized (∼ 20 nm) ZnFe 2 O 4 synthesized by flow rate controlled coprecipitation method. The PXRD and HRTEM study demonstrate that the sample is nanosized, single phase spinel oxide which crystallizes in space group . The sample exhibits superparamagnetic relaxation above blocking temperature (∼ 25 K). The saturation magnetizations of the sample are 4, 20 and 28 emu g -1 at 300, 100 and 10 K, respectively and the sample exhibits no hysteresis at 300 and 100 K. |
| Databáze: | OpenAIRE |
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