Magnetism in DyNi1-xCuxAl pseudoternary series

J. Prchal (1) , P. Javorsky (1) , J.P. Vejpravova (2) , Olivier Isnard (3) , B. Detlefs (4) , S. Danis (5) , V. Sechovský (1)

1 UK - Univerzita Karlova [Praha, Česká republika] = Charles University [Prague, Czech Republic]
2 Institute of Physics [Prague]
3 NEEL - MRS - Matériaux, Rayonnements, Structure
4 ESRF - European Synchrotron Radiation Facility
5 Faculty of Mathematics and Physics [Praha/Prague]

The evolution of magnetism in the DyNi1-xCuxAl pseudoternary series was studied. The results of magnetization, magnetic susceptibility, heat capacity and neutron diffraction experiments are summarized and discussed in context of other RNi1-xCuxAl pseudoternaries The compounds with x <= 0.2 adopt the coexistence of antiferromagnetic and ferromagnetic order similar to that one in the parent DyNiAl. The compounds with 0.3 <= x <= 06 exhibit antiferromagnetic order only while the compounds with x >= 09 are ferromagnets The compounds with 0 6 <= x <= 0.9 exhibit signs of short-range correlations, especially the compound with x = 08 does not show any long-range magnetic order at all. It is in accordance with previously studied series.

Domaines: Science des matériaux [cond-mat.mtrl-sci]

J. Prchal, P. Javorsky, J.P. Vejpravova, Olivier Isnard, B. Detlefs, et al.. Magnetism in DyNi1-xCuxAl pseudoternary series. Intermetallics, 2010, 18, pp.2109-2118. ⟨10.1016/j.intermet.2010.06.019⟩. ⟨hal-00989321⟩