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Superconducting order parameter in heavily overdoped Bi2Sr2CaCu2O8+δ: A global quantitative analysis

R. H. He, D. L. Feng, H. Eisaki, J.-I. Shimoyama, K. Kishio, G. D. Gu

DOI 10.1103/PhysRevB.69.220502 · Physical Review B

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Abstract

A systematic analysis of the complex photoemmision spectrum line shape at (π,0) of heavily overdoped Bi2Sr2CaCu2O8+δ is presented. We show that a coherent component in the quasiparticle excitation is correlated with the superfluid density throughout the entire doping range and suggest it is a direct measure of the order parameter of high temperature superconductors.

Source-reported materials — not catalogue approval

FormulaReported Tc (K)Pressure (GPa)Type
Bi2Sr2CaCu2O8+δ

Archive — visibility unverified

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90Pressure not reportedunknown
Bi2Sr2CaCu2O8+δ

Archive — visibility unverified

Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.

65Pressure not reportedunknown

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