| Autor: |
W.J. Sousa, Bartolomeu C. Viana, João M. Soares, R.B. da Silva, R. Peña-Garcia, E. Padrón-Hernández |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Results in Physics, Vol 53, Iss , Pp 107004- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2211-3797 |
| DOI: |
10.1016/j.rinp.2023.107004 |
| Popis: |
This paper presents the behavior of saturation magnetization and other magnetic properties depending on the temperature variation from the nanoparticles of YIG doped and co-doped with Gd and La at different concentrations. The samples were prepared according to the sol–gel method, resulting in crystallite sizes ranging from 55 nm to 121.2 nm. X-ray diffraction measurements and microscopy show details of the structural characterization of the compounds. The magnetization values were measured as a function of the external magnetic field of up to 20 kOe at temperatures between 2K and 300K. The saturation magnetization varied between 25.23 emu/g and 29.10 emu/g, at 300K. At 2K, the variation occurs between 30.72 emu/g and 39.92 emu/g. The magnetic properties of compound, are high sensitivity to temperature variations and the results showed a weakened ferrimagnetic coupling with the dopant concentration. Also, changes in the cubic anisotropy constant with temperature were verified. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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