- Tytuł:
- Hyperfine interactions in (Cr0.9957Fe0.01)3 + xSi1 - x
- Autorzy:
-
Satuła, D.
Szymański, K.
Olszewski, W.
Kalska-Szostko, B.
Waliszewski, J.
Rećko, K. - Powiązania:
- https://bibliotekanauki.pl/articles/147344.pdf
- Data publikacji:
- 2013
- Wydawca:
- Instytut Chemii i Techniki Jądrowej
- Tematy:
-
A15 structure
Cr-Fe-Si alloys
Mössbauer spectroscopy
X-ray diffraction - Opis:
- X-ray diffraction measurements and Mossbauer spectroscopy with external magnetic field were carried out on (Cr0.99 57Fe0.01)3+xSi-x alloys. The Mossbauer spectra for A15 type of structure can be described by superposition of single line S(1) and two doublets D(1) and D(2). The relative ratio of the S(1) and D(2) strongly depends on x. The nearest neighbours of these components have been identified. It was shown that 57Fe atoms preferentially locate in Cr positions for x less-than or equal to 0.0, while for x greater 0.0 iron atoms are distributed both in Cr and Si positions. It was shown that, in A15 structure, one Cr atom located in the 57Fe nearest neighbours (n.n.) decreases isomer shift by (0.022 plus or minus 0.002) mm/s, while one Si in n.n. increases isomer shift by (0.09 plus or minus 0.01) mm/s. The measured Mossbauer spectra of bcc Cr-Si indicate that atoms are randomly distributed and can be well described as superposition of single lines, related to various local environments of 57Fe atoms.
- Źródło:
-
Nukleonika; 2013, 58, 1; 73-76
0029-5922
1508-5791 - Pojawia się w:
- Nukleonika
- Dostawca treści:
- Biblioteka Nauki
Artykuł