Structural and magnetic investigations of Sc(Fe1-xNix)2 compounds by means of Mössbauer effect and neutron diffraction

• Autorzy: Wiertel M. , Surowiec Z. , Sarzyński J. , Budzyński M. , Beskrovnyi I.
• Konferencja: Proceedings of the All-Polish Seminar on Mössbauer Spectroscopy OSSM'06, June 18-21, 2006, Koszęcin, Poland
• Języki publikacji: EN

Abstrakty

EN

The structural and microscopic magnetic properties of the pseudobinary Sc(Fe1 xNix)2 system were studied by XRD and Mössbauer measurements in the range of 0.10 less-than or equal to - x less-than or equal to - 0.60. All investigated samples have the cubic C15-type structure. Both the magnetic hyperfine field on 57Fe and the Curie temperature decrease with increasing Ni content and the system becomes paramagnetic for x H 0.60 at room temperature. The form and temperature dependences of the Mössbauer spectra for 0.40 less-than or equal to - x less-than or equal to - 0.50 indicate the coexistence of paramagnetic and ferromagnetic regions in the samples and occurrence of magnetic clusters with a wide distribution of the Curie temperatures. As follows from the near to zero values of quadrupole shifts in Mössbauer spectra it results that a <100> direction is a local easy magnetization axis for x e 0.10.

Słowa kluczowe

EN

Mössbauer effect; hyperfine interactions; quasibinary Laves phase; Sc(Fe1 xNix)2

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2007
• Tom: Vol. 52, supl. 1
• Strony: 71--75
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Wiertel M.

autor

Surowiec Z.

autor

Sarzyński J.

autor

Budzyński M.

autor

Beskrovnyi I.

• Institute of Physics, M. Curie-Skłodowska University, 1 M. Curie-Skłodowska Sq., 20-031 Lublin, Poland, Tel.: [phone], Fax: [phone],

Bibliografia

• 1. Asano S, Ishida S (1988) Magnetism and crystal structure of Laves phase compounds. J Phys F 18:501−515
• 2. Collings EW, Smith RD, Lecander R G (1969) Magnetic susceptibility studies of the cubic Laves phases Sc(Ni1−xCox)2. J Less-Common Met 18:251−266
• 3. Kotur BYa, Gratz E, Bauer E et al. (1998) Magnetic and electrical properties of Sc(M1−xSix)2−y (M=Fe,Co,Ni). J Alloys Compd 278:49−59
• 4. Moriya T (1982) Spin fluctuations in ferromagnetic metals-temperature variation of local moment and short range order. J Phys Soc Jpn 51:420−434
• 5. Muraoka Y, Shiga M, Nakamura Y (1979) Magnetic properties and Mössbauer effects of Zr(Fe1−xCox)2. J Phys F 9:1889−1904
• 6. Pokatilov VS, Golikova V, Tsvyashchenko A, Fomichova L (1990) Hyperfine fields and magnetic moments in intermetallic ScFe2 with cubic and hexagonal structures.Hypefine Interact 59:529−532
• 7. Reissner R, Steiner W (1986) Electrostatic hyperfine interactions in Y(Fe1−xAlx)2. Hyperfine Interact 28:1017−1020