Kondo effect in UCu5.5Ga0.5

Abstract The ternary phase UCu 5.5 Ga 0.5 was studied by magnetization, electrical resistivity and specific heat measurements. It exhibits a modified Curie–Weiss behaviour with reduced effective magnetic moment with no hint at any magnetic transition down to 1.7 K. The low-temperature electronic specific heat is moderately enhanced being 185 mJ/(mol K 2 ). The electrical resistivity behaves in a manner characteristic of systems with strong electronic correlations.