Hyperfine interactions in (Cr0.9957Fe0.01)3 + xSi1 - x

• Autorzy: Satuła D. , Szymański K. , Olszewski W. , Kalska-Szostko B. , Waliszewski J. , Rećko K.
• Konferencja: Proceedings of the 9th All - Polish Seminar on Mössbauer Spectroscopy OSSM'2012, 10-13 June 2012, Lublin - Kazimierz Dolny, Poland
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

A15 structure; Cr-Fe-Si alloys; Mössbauer spectroscopy; X-ray diffraction

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2013
• Tom: Vol. 58, No. 1
• Strony: 73--76
• Opis fizyczny: Bibliogr. 16 poz., rys.

Twórcy

autor

Satuła D.

autor

Szymański K.

autor

Olszewski W.

autor

Kalska-Szostko B.

autor

Waliszewski J.

autor

Rećko K.

• University of Bialystok, Faculty of Physics, 41 Lipowa Str., 15-424 Białystok, Poland, Tel.: [phone], Fax:[phone],

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