Electronic properties of CeIn3 under high pressure near the quantum critical point -: art. no. 024425

We present a detailed study of the phase diagram of the antiferromagnetic Kondo-lattice compound CeIn3 under pressure up to 100 kbar by resistivity measurements. Antiferromagnetic order vanishes at a critical pressure P-c=26.5 kbar. At this quantum critical point a complete superconducting transition is found in the pressure range from 24 to 27 kbar. Normal state properties near the critical point show strong deviations from Fermi-liquid behavior. In magnetic fields just above the upper critical field Fermi-liquid behavior is restored. For P>P-c, rho(T) shows a clean T-2 dependence up to a crossover temperature T-1 which increases linearly with pressure. The temperature dependence of the upper critical field H-c2 can be described with a strong coupling model in the clean limit.