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Phys Rev Lett. 2002 Oct 7;89(15):157004. Epub 2002 Sep 23.

Superconductivity and quantum criticality in CeCoIn5.

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Los Alamos National Laboratory, New Mexico 87545, USA.


Electrical resistivity measurements on a single crystal of the heavy-fermion superconductor CeCoIn5 at pressures to 4.2 GPa reveal a strong crossover in transport properties near P(*) approximately 1.6 GPa, where T(c) is a maximum. The temperature-pressure phase diagram constructed from these data provides a natural connection to cuprate physics, including the possible existence of a pseudogap.

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