Response of the Heavy-Fermion Superconductor CeCoIn5 to Pressure: Roles of Dimensionality and Proximity to a Quantum-Critical Point
M. Nicklas, R. Borth, E. Lengyel, P. G. Pagliuso, J. L. Sarrao, V. A. Sidorov, G. Sparn, F. Steglich, J. D. Thompson
Abstract
We report measurements of the pressure-dependent superconducting transition temperature Tc and electrical resistivity of the heavy-fermion compound CeCoIn5. Pressure moves CeCoIn5 away from its proximity to a quantum-critical point at atmospheric pressure. Experimental results are qualitatively consistent with theoretical predictions for strong-coupled, d-wave superconductivity in an anisotropic 3D superconductor.
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