The Structural and the Magnetic Properties of Aluminum Substituted Yttrium Iron Garnet
| Autor: | Mahdi S. Lataifeh, Sami H. Mahmood, Qassem I. Mohaidat, Ibrahim Bsoul, Khozima Hamasha, Mufeed Awawdeh |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Magnetic Properties Hyperfine Interactions Analytical chemistry Yttrium iron garnet 02 engineering and technology 01 natural sciences Ion Mössbauer Spectroscopy chemistry.chemical_compound Lattice constant 0103 physical sciences Mössbauer spectroscopy General Materials Science Materials of engineering and construction. Mechanics of materials Hyperfine structure 010302 applied physics Mechanical Engineering X-ray Diffraction 021001 nanoscience & nanotechnology Condensed Matter Physics Octahedron chemistry Mechanics of Materials Superexchange X-ray crystallography TA401-492 0210 nano-technology |
| Zdroj: | Materials Research, Vol 21, Iss 3 (2018) |
| ISSN: | 1980-5373 1516-1439 |
| Popis: | In this paper, Y3AlxFe5-xO12 powders with x = 0.0, 0.2, 0.4, 0.6, 0.8, and 1.0 were prepared via solid state reaction method. X-ray diffraction, Vibrating Sample Magnetometry, and Mössbauer Spectroscopy were used to study their structural and magnetic properties. The XRD patterns of the samples show single phase structure with decreasing lattice constant when increasing Al concentration. The saturation magnetization decreases from 28.0 to 10.1 emu/g with increasing Al3+ from 0.0 to 1.0 due to the reduction of the superexchange interactions between iron ions in the a and d sublattices. Room temperature Mössbauer spectra for the samples were collected and analyzed. The hyperfine field values for octahedral and tetrahedral sites of the samples decreased with increasing Al concentration. Moreover, Mössbauer results have shown that Al3+ ions prefer to replace Fe+3 at the octahedral sites. |
| Databáze: | OpenAIRE |
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