Effects of substitution of Dy for Nd on the structural and magnetic properties of Nd3−xDyxFe27.5Mo1.5 (0.3⩽x⩽1.8)
| Autor: | Y.J. Xue, J.H. Li, Z.B. Hu, Xiangfeng Liu, Xiang-Biao Li, Jie Peng, D.F. Chen, Han Shiji, Jianguo Lv |
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| Rok vydání: | 2005 |
| Předmět: |
Materials science
Rietveld refinement Intermetallic Crystal structure Condensed Matter Physics Electronic Optical and Magnetic Materials Magnetization Crystallography Lattice constant Nuclear magnetic resonance X-ray crystallography Curie temperature Electrical and Electronic Engineering Saturation (magnetic) |
| Zdroj: | Physica B: Condensed Matter. 367:275-281 |
| ISSN: | 0921-4526 |
| DOI: | 10.1016/j.physb.2005.06.028 |
| Popis: | A series of Nd 3− x Dy x Fe 27.5 Mo 1.5 (0.3⩽ x ⩽1.8) intermetallic compounds were prepared. Their structural properties have been investigated using powder X-ray diffraction and their magnetic properties have been studied by a vibrating sample magnetometer (VSM). Rietveld refinement of the X-ray patterns shows that the lattice constants a , b , c and the unit cell volume V are decreased by the substitution of Dy for Nd. Mo prefers to occupy 4i 1 , 4i 2 and 4 g sites due to the size and thermodynamic effects. The Curie temperatures T C of the 3:29 phases in all samples obtained by TMA measurements do not show remarkable changes. However, the saturation magnetizations of the samples decrease monotonically with more Nd replaced by Dy in compounds. |
| Databáze: | OpenAIRE |
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