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Adam KaminskiDepartment of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, USAStephan RosenkranzDepartment of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, USAH. M. FretwellDepartment of Physics, University of Wales Swansea, Swansea, SA2 8PP, United KingdomZihan LiLaboratoire de Physique des Solides, Université Paris-Sud, 91405 Orsay, FranceH. RaffyLaboratoire de Physique des Solides, Université Paris-Sud, 91405 Orsay, FranceMohit RanderiaTata Institute for Fundamental Research, Homi Bhabha Road, Mumbai 400005, IndiaM. R. NormanMaterials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USAJ. C. CampuzanoDepartment of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, USA
2003lv
ABI
Annotatsiya
Angle resolved photoemission spectroscopy (ARPES) and resistivity measurements are used to explore the overdoped region of the high temperature superconductor Bi(2)Sr(2)CaCu(2)O(8+delta). We find evidence for a new crossover line in the phase diagram between a coherent metal phase, for lower temperatures and higher doping, and an incoherent metal phase, for higher temperatures and lower doping. The former is characterized by two well-defined spectral peaks in ARPES due to coherent bilayer splitting and superlinear behavior in the resistivity, whereas the latter is characterized by a single broad spectral feature in ARPES and a linear temperature dependence of the resistivity.
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