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|Type:||Artigo de periódico|
|Title:||Superconducting Quantum Critical Point in CeCoIn5-xSnx|
|Abstract:||We report a combined pressure-doping study in the nearly two-dimensional heavy fermion superconductor CeCoIn5 as its superconducting phase is driven to the normal state by Sn doping and/or applied pressure. Temperature-pressure-dependent electrical resistivity measurements were performed at the vicinity of a superconducting quantum critical point where T-c -> 0. A universal plot of the concentration- and pressure-dependent phase diagram suggests that for the concentrations studied a single mechanism is responsible for reducing T-c and bringing the system to the superconducting quantum critical point. A two-band model with hybridization controlled by pressure and doping provides a consistent description of the phase diagram and the suppression of the d-wave superconductivity in this material.|
|Editor:||Amer Physical Soc|
|Citation:||Physical Review Letters. Amer Physical Soc, v. 105, n. 12, 2010.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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