Magnetic, transport and Mössbauer effect study of UFeAl |
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Authors: | R. Tro , V.H. Tran, F.G. Vagizov,H. Drulis |
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Affiliation: | W. Trzebiatowski Institute for Low Temperature and Structure Research, Polish Academy of Sciences, 50-950, Wroclaw, Poland |
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Abstract: | We present the results of magnetic susceptibility, electrical resistivity and Mössbauer effect measurements performed on two crystallographic structures of UFeAl: high-temperature (HT) and low-temperature (LT) phases, i.e. MgZn2 and Fe2P-type structures respectively. The exchange-enhanced Pauli susceptibility and spin-fluctuation characteristics of the temperature dependence of the electrical resistivity of UFeAl are almost independent of the type of crystal structure. 57Fe Mössbauer spectra of both crystallographic phases of UFeAl, recorded in the temperature range 10–295 K, consist of two symmetric quadrupole doublets for each crystal structure associated with the non-equivalent crystallographic positions of Fe. The Debye temperatures for the HT and LT structures of UFeAl were also estimated. |
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