| Autor: |
G. Hilscher, D.P. Lazar, Andrei Galatanu, Neculai Plugaru, A. Kottar, George Filoti, M. Morariu, Victor Kuncser |
| Rok vydání: |
1999 |
| Předmět: |
|
| Zdroj: |
Journal of Alloys and Compounds. 285:37-47 |
| ISSN: |
0925-8388 |
| DOI: |
10.1016/s0925-8388(98)01055-x |
| Popis: |
The effects of Mo substitution in Pr2Fe17−xMox and PrFe12−xMox compounds were investigated by X-ray diffraction, magnetic measurements and Mossbauer spectroscopy. Different fitting procedures, using magnetic sextets at low temperature, magnetic sextets and quadrupole doublets at room temperature and paramagnetic doublets well above the Curie points, had to be considered in order to analyze the Mossbauer spectra. The Mossbauer data obtained on the Mo-containing compounds stand for distributions of the hyperfine fields due to the random distributions of Mo over the 6c sites in the 2:17 and 8i sites in the 1:12 compounds. The variations in the isomer shifts and hyperfine fields with composition are discussed in relationship to the local environment details at the different iron sites. Site-specific information on the electronic effects due to Fe(3d)–Mo(4d) states hybridization are derived. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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