Cation Distribution and Magnetic Properties of Gd+3-Substituted Ni-Zn Nano-ferrites
| Autor: | M V Santhosh Kumar, K.K. Nagaraja, G.J. Shankarmurthy, E. Melagiriyappa, Ashok Rao |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Diffraction Materials science Magnetic moment Magnetometer Analytical chemistry Condensed Matter Physics 01 natural sciences Nanocrystalline material Electronic Optical and Magnetic Materials Ion law.invention Magnetization law 0103 physical sciences Nano 010306 general physics Anisotropy |
| Zdroj: | Journal of Superconductivity and Novel Magnetism. 33:2821-2827 |
| ISSN: | 1557-1947 1557-1939 |
| DOI: | 10.1007/s10948-020-05502-5 |
| Popis: | A series of Gd+3-substituted nanocrystalline Ni-Zn ferrites Ni1-xZnxGd0.1Fe1.9O4 (0 ≤ x ≤ 1) are prepared using a low-temperature citrate auto-combustion method. The cation distribution obtained using powder x-ray diffraction demonstrates an increase in hopping length between magnetic and Zn+2 ions. Cation–oxygen vibrations are identified by FTIR spectra. Effect of Zn+2 ion on the magnetic properties at room temperature is determined from the magnetic moment measured through a vibrating sample magnetometer. The magnetic moment and saturation magnetization obey Yafet–Kittel type magnetization with the highest saturation magnetization for x = 0.2 (≈ 54 emu/g). The low squareness ratio of the samples (0.25–0.12) confirms the uniaxial anisotropy. |
| Databáze: | OpenAIRE |
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