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Article Dans Une Revue Journal of Magnetism and Magnetic Materials Année : 2010

Structural and magnetic properties of ErCo4.5Ge0.5 intermetallic compound

Résumé

We report on the structural and magnetic properties of ErCo4.5Ge0.5 intermetallic compound. This phase crystallize in the hexagonal CaCu5-type structure with P6/mmm space group. Neutron powder diffraction experiments demonstrate that the Ge atoms preferentially occupy the 3g crystallographic site of the CaCu5 structure. The Ge for Co substitution induces a dramatic decrease of the magnetic ordering temperature down to 785 K. The ErCo4.5Ge0.5 compound exhibit a compensation temperature at 100 K where the magnetization of the two sublattices Er and Co cancel out. The influence of Ge for Co substitution on the magnetic properties is discussed.

Dates et versions

hal-00984940 , version 1 (28-04-2014)

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Claire Colin, Olivier Isnard. Structural and magnetic properties of ErCo4.5Ge0.5 intermetallic compound. Journal of Magnetism and Magnetic Materials, 2010, 322, pp.1150-1152. ⟨10.1016/J.JMMM.2009.06.047⟩. ⟨hal-00984940⟩

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