Non-Fermi liquid behavior in Ce2Co6Al19

Abstract A new cerium compound Ce 2 Co 6 Al 19 was prepared in polycrystalline form and studied by means of X-ray diffraction, magnetic susceptibility, electrical resistivity and specific heat measurements. The results obtained indicate that the new phase exhibits distinct non-Fermi liquid features in its low-temperature thermal properties, at least over a decade in temperature. Yet, at the lowest temperatures reached a cross-over into Fermi liquid behavior is observed, as can be expected for a system located in the vicinity of a magnetic quantum critical point.