Electronic properties of CeIn3 under high pressure near the quantum critical point

G. Knebel, D. Braithwaite, P. C. Canfield, G. Lapertot, and J. Flouquet
Phys. Rev. B 65, 024425 – Published 19 December 2001
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Abstract

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 Pc=26.5kbar. 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>Pc, ρ(T) shows a clean T2 dependence up to a crossover temperature TI which increases linearly with pressure. The temperature dependence of the upper critical field Hc2 can be described with a strong coupling model in the clean limit.

  • Received 9 March 2001

DOI:https://doi.org/10.1103/PhysRevB.65.024425

©2001 American Physical Society

Authors & Affiliations

G. Knebel, D. Braithwaite, P. C. Canfield*, G. Lapertot, and J. Flouquet

  • Département de Recherche Fondamentale sur la Matière Condensée, SPSMS, CEA Grenoble, 38054 Grenoble, France

  • *On leave in CEA Grenoble. Permanent address: Department of Physics and Astronomy and Ames Laboratory, Iowa State University, Ames, IA 50011.

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Vol. 65, Iss. 2 — 1 January 2002

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