| NUKLEONIKA 2013, 58(1):133-135
HYPERFINE INTERACTIONS IN Tb0.27-xYxDy0.73Fe2 COMPOUNDS
AT 295 K
Artur Krawczyk1, Agnieszka Zwoźniak1, Piotr Guzdek2, Paweł Stoch1,3,
Piotr Zachariasz3, Jan Suwalski3, Jarosław Pszczoła1
1 AGH University of Science and Technology, Faculty of Physics and Applied Computer Science,
al. A. Mickiewicza 30, 30-059 Krakow, Poland
2 Institute of Electron Technology, 39 Zabłocie Str., 30-701 Kraków, Poland
3 National Centre for Nuclear Research, 7 Andrzeja Sołtana Str., 05-400 Otwock/Świerk, Poland
This paper concerns the synthesis of yttrium-dilute Tb0.27–xYxDy0.73Fe2 intermetallic series with a borderline compound Tb0.27Dy0.73Fe2 known as Terfenol-D by arc melting, XRD analysis and 57Fe Mössbauer effect studies at 295 K. XRD analysis (295 K) shows that all samples crystallize in a cubic, Fd3m, MgCu2-type structure. The lattice parameter increases along with yttrium content. Mössbauer effect spectra for the Tb0.27–xYxDy0.73Fe2 series collected at 295 K consist of two subspectra due to easy direction of magnetization <111>. Hyperfine interaction parameters: isomer shift, magnetic hyperfine field and a quadrupole splitting were obtained from the fitting procedure of the spectra.
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