- Tytuł:
- 57Fe Mössbauer effect studies of ErFe11Ti and ErFe11TiH compounds
- Autorzy:
-
Gaczyński, P.
Tereshina, I.
Rusakov, V.
Nikitin, S.
Drulis, H. - Powiązania:
- https://bibliotekanauki.pl/articles/148892.pdf
- Data publikacji:
- 2003
- Wydawca:
- Instytut Chemii i Techniki Jądrowej
- Tematy:
-
rare earth
iron compounds
metal hydrides
Mössbauer spectroscopy - Opis:
- Ferromagnetic compounds ErFe11TiHx (x = 0, 1) have been investigated by 57Fe Mössbauer spectroscopy in the temperature range 20–300 K. Mössbauer spectra were analyzed in terms of a model which takes into account the local environment of Fe atoms on three crystallographic sites (8f, 8j and 8i) and an influence of the random distribution of titanium on the 8i site. The 14 sextets with different intensities have been considered. The temperature dependencies of hyperfine interaction parameters and subspectra contributions were derived from experimental spectra. The hyperfine fields and the isomer shift increasing upon hydrogenation are discussed in terms of the hydrogen-induced Wigner-Seitz unit cell expansion and the s-electrons transfer from Fe atoms to the adjacent hydrogen atoms.
- Źródło:
-
Nukleonika; 2003, 48,suppl.1; 25-29
0029-5922
1508-5791 - Pojawia się w:
- Nukleonika
- Dostawca treści:
- Biblioteka Nauki
Artykuł