Thermodynamic properties and magnetism of Ce3Cu3Sb4

摘要: The specific heat capacity cp(T) of Ce3Cu3Sb4 was determined between 0.6 K and 100 in magnetic fields up to Hext = 140 kOe. ordering transition at 10.8(1) shows as a tiny step-like anomaly cp(T), while lower temperatures large centred 4.8(1) is observed. In small the shifts higher temperature disappears for Hext≈10 broadens well with increase Arrott plots isothermal magnetization curves M(Hext) critical isotherm found Tc≈4 K. These thermodynamic data thus suggest that evolution order related compounds more complicated than described previously.