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Proceedings of the All-Polish Seminar on Mössbauer Spectroscopy OSSM'06, June 18-21, 2006, Koszęcin, Poland
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Abstrakty
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.
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Tom
Strony
71--75
Opis fizyczny
Bibliogr. 7 poz., rys.
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autor
autor
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- Institute of Physics, M. Curie-Skłodowska University, 1 M. Curie-Skłodowska Sq., 20-031 Lublin, Poland, Tel.: +48 81 5376220, Fax: +48 81 5376191, marwier@hektor.umcs.lublin.pl
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
Typ dokumentu
Bibliografia
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bwmeta1.element.baztech-article-BUJ6-0011-0051