Electrical resistivity and specific heat of a stoichiometric NpFe4Al8 polycrystalline
sample were measured between 2-300 K, and under 0-9 T applied magnetic fields. Both measurements confirm the occurrence of magnetic ordering at 135(5) K. The electrical resistivity displays a second anomaly at 113(5) K, which was ascribed to the neptunium magnetic ordering. There is a clear evidence of predominant ferromagnetic-like interactions in this compound, but with a complex magnetic structure, as previously
suggested by the magnetic measurements and theoretical calculations. The high g =
183(10) mJmol-1K-2 value classifies the NpFe4Al8 compound as a moderate heavy fermion.
GONCALVES A.P.;
ALMEIDA M.;
WASTIN Franck;
COLINEAU Eric;
BOULET Pascal;
JAVORSKY Pavel;
REBIZANT Jean;
2006-05-23
Elsevier B.V.
JRC30541
https://publications.jrc.ec.europa.eu/repository/handle/JRC30541,
10.1016/j.jallcom.2005.08.042,
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